Showing posts with label herbs. Show all posts
Showing posts with label herbs. Show all posts

Thursday 14 February 2019

The Ecological Park Varzea in Quinta Do Conde in Portugal

A lot more to the town of Quinta Do Conde
Map of the Ecological Park (Photo: Steve Andrews)
If you were driving through on the main road through the town of Quinta do Conde in Portugal you might not think there was much to see there. You might think it was merely a typical Portuguese town with plenty of houses, apartment blocks, local businesses, a share of restaurants and bars, as well as shops, roads, and all the usual urban ingredients.  A pleasant enough place if you lived or worked there perhaps, but not a lot else there, and not much to see. However, you would be very wrong. If you are interested in nature, ecology and gardening, Quinta Do Conde has an amazing Ecological Park known as the Parque Ecológico da Várzea da Quinta do Conde. This park is actually right next to the main road, and just minutes from the busy local Continente and Pingo Doce supermarkets, but it is a real haven for wildlife, a wonderful place for relaxing, and it even has an allotment area where local people can grow fruit and vegetables.
Turtle Lake and White Storks
Lagoa Cagados (Photo: Steve Andrews)
The Ecological Park has a lake known as Lagoa Cagados, which means Turtle Lake in Portuguese and presumably refers to freshwater terrapins that can be found there. I didn’t see any any when I visited but I did see a number of frogs jumping into the water. They were Iberian Water Frogs, a species that is common here. There is a large area of swampy meadow where I have seen flocks of White Storks gather. They are easy to see from the main road and I have noticed them on my way to the shops. I expect these large birds are hunting frogs that are plentiful in the park. I saw more of these amphibians in a reedy pool but the creatures were too quick for me to get any photos.

According to an information plaque, Grey Herons also frequent the wetlands provided here. I am not surprised because there are many ponds, water canals and reed-beds. In one part there is a lookout point for birdwatchers.

Swampy Meadow Where Storks Gather (Photo: Steve Andrews)
Walking Areas
There is a system of paths and walking routes around the park, as well as areas with tables and benches where you could relax or enjoy a picnic. I was impressed with the number of small birds I saw and heard in the park, and also there were plenty of honeybees collecting nectar from the catkins of the Sallows, or “Pussy Willows” as I also know them.

Pussy Willow (Photo: Steve Andrews)
I noticed a lot of Fennel sprouting amongst the greenery, and this plant is eaten by the caterpillars of the Swallowtail Butterfly, which breeds in the park. I found a clump of Salad Burnet too, which is another edible herb.
Salad Burnet (Photo: Steve Andrews)
Woodlands
There are plenty of trees and woodland areas in the Ecological Park and many of the trees are labelled. I saw an Alder covered in catkins, and there are also Cork Oaks, Pines, and at least one Strawberry Tree. In one part of woodland I noticed a large pile of rocks. It had been fenced off and I wondered if this was intended as a place for reptiles and amphibians to shelter and hibernate in winter. It would make a great place for this. According to an information board I saw, the Viperine and Ladder Snake can be found there, as can Fire Salamanders and the Common Toad. I would not be at all surprised. It is simply a wonderful location for wildlife of most types.
Fish and amphibians (Photo: Steve Andrews)
The Allotments
Allotment (Photo: Steve Andrews)
Continuing my walk around the grounds of the Varzea Ecological Park of Quinta Do Conde, I had a look at the area given over to allotments. This area is very much for wildlife as well as people, and I noticed nest-boxes were in use to encourage nesting birds.
Nest-box (Photo: Steve Andrews)
Here in the allotment section, local gardeners grow cabbages, kale, onions, leeks and many other vegetables.
Vegetable Plot (Photo: Steve Andrews)
The plants all looked very green and healthy, and the plots of ground are watered with water from the ponds and water channels. These pools and areas of freshwater provide further areas for aquatic life, amphibians and water birds, and I could see thousands of the Mosquito Fish (Gambusia holbrooki) in one of the larger ponds. This is a fish I was used to seeing in Tenerife when I lived there some years ago. Mosquito Fish have become naturalised in many subtropical parts of the world where they were originally brought, as their name suggests, in an effort to control mosquitoes. These little fish are very adaptable and can tolerate high and low temperatures, polluted and brackish water.
Pond with water used in the allotments (Photo: Steve Andrews)
I saw a few dragonflies too and would think the park would have loads of these insects later in the year. I am lucky to have this park near to where I live so will be making many more visits and seeing what goes on there in spring and summer. I imagine the ponds will have a loud chorus of frogs and plenty of tadpoles will be swimming in the water. I love the sound of frogs croaking!
Iberian Water Frog (Photo: Steve Andrews)

Monday 16 July 2018

Salisbury Wildlife and the Avon Valley Nature Reserve

Visiting Salisbury


I recently had the pleasure of visiting the city of Salisbury in Wiltshire for a few days and fell in love with the place. I was happy to see that wildlife is thriving here, despite increasing declines in species throughout much of the UK.


Cinnabar Moth caterpillars (Photo: Steve Andrews)

Even in the heart of the city I spotted Cinnabar Moth (Tyria jacobaeae) caterpillars on Ragwort. There were plenty of these brightly-coloured caterpillars on plants growing on the riverbank right by the Waitrose supermarket. These larvae have orange bodies, banded with black rings. The adult moth is also a very pretty creature with red and black wings. It flies by day and could easily be thought to be a butterfly. This moths caterpillars eat various species of Ragwort and Groundsel (Senecio species). Although these plants are classed as weeds they are very important sources of life for many additional species, in addition to the caterpillars of the Cinnabar Moth. The Buglife charity, which is concerned with the conservation of invertebrates, has reported that over 30 other species of insect depend on Ragwort alone.




Avon Valley Local Nature Reserve

King Arthur Pendragon, Kazz and Chris Stone (Photo: Steve Andrews)


I was in Britain for Summer Solstice at Stonehenge and also visiting my friends, author Chris Stone, and Druid and eco-warrior King Arthur Pendragon and his partner Kazz. Arthur and Kazz live locally and they suggested we could go on a walk in the nature reserve that is on the banks of the River Avon. I love nature, so was happy to agree to their suggestion, and was very highly impressed with what I saw.


River Avon (Photo: Steve Andrews)


The River Avon looked really clean and there were very many fish that could easily be seen swimming in the current. I spotted Brown Trout (Salmo trutta), Minnows (Phoxinus phoxinus), and what looked like Dace (Leuciscus leuciscus).

A Shoal of Fish (Photo: Steve Andrews)


Meadowsweet (Photo: Steve Andrews)


There are extensive water meadows bordering the river too, and in the marshy ground was plenty of Meadowsweet (Filipendula ulmaria) in bloom. It has a most amazing perfume that reminds of summer meadows and freshly mown grass, and is a most beautiful herb that is actually in the rose family (Rosaceae).



As well as Meadowsweet, there  were plenty of Creeping Thistles (Cirsium arvense) in flower, and also the very poisonous, but attractive to insect pollinators, Hemlock Water Dropwort (Oenanthe crocata). Kazz spotted a colourful moth feeding on the nectar from this dangerous plant, and she asked me what it was. It was a Scarlet Tiger Moth (Callimorpha dominula), a pretty moth that flies by day, and is of interest because it is unusual for being able to feed. Most other species of tiger moths have no mouth-parts and do all their feeding as larvae.

Scarlet Tiger Moth (Photo: Steve Andrews)


On the thistles I saw several Small Tortoiseshell (Aglais urticae) butterflies. This was a good sign because this once common species has been declining fast in the UK over the past few years. There were plenty of clumps of Stinging Nettle (Urtica dioica) growing nearby, and this is its main food-plant for its caterpillars.


Small Tortoiseshell on Thistle (Photo: Steve Andrews)

Water Voles 

Avon Valley Info Board (Photo: Steve Andrews)


Near a bridge over the Avon there was an information board showing species of wildlife that can be found on the reserve. I was happy to see the Water Vole (Arvicola amphibious) included. This is a British mammal that has become increasingly rare, so it was very good news to see that it is holding its own here. Kingfishers (Alcedo atthis) too frequent the area I learned, and I was not surprised, because it is an ideal habitat with plenty of small fish they can hunt.




Elsewhere in Salisbury

Steve Andrews in Salisbury

 I also went for an evening stroll with Chris around Salisbury and around the area outside Salisbury Cathedral. The atmosphere was calm and peaceful and it was a glorious summer evening. I was really impressed with how there was no litter to be seen, no graffiti, and no damage to trees of the city, unlike elsewhere in the UK, where trees are being felled with the support of local councils. How is it that Salisbury doesn’t appear to have the problems other towns and cities have I wondered? “I would love to live in Salisbury,” I told Chris. “I think you will find properties here are very expensive,” he told me. He also pointed out that Salisbury is a Tory stronghold, and suggested that might have something to do with how it is there. He was right that houses and flats in the city are very expensive to buy and rent, and also that the Conservative party is in power there.

In no way do I support the Tories, but it got me thinking about how it seems that it is mostly Labour councils that are behind the destruction of so many city trees in Britain. For example, this is the case in Sheffield, a city that has made world news with regard to the thousands of trees that have been felled there by Amey Plc with the support of Labour politicians. I haven’t done the research yet but I wonder how many cities have lost their street trees due to corrupt Labour councillors?

Friday 25 May 2018

Here Be Dragons

The Mysterious Dragon Tree Produces Dragon's Blood


Dragon Tree (Photo: Pixabay)

The dragon tree (Dracaena draco) is a very weird-looking plant that grows to the size of a tree and can live a very long time. One known as the “Drago Milenario,”  that grows in Icod de los Vinos in Tenerife, is said to be 1000-years-old or more, though other estimates put it at more like 650 years.



Drago Milenario (Photo: Pixabay)

Dragon's Blood

The dragon’s tree is the source of a resinous substance known as dragon’s blood, which is formed when the tree is cut. The sap that oozes out dries a dark red colour. Dragon’s blood is said to have magical and medicinal properties. It has been used in varnish and also as an ingredient in incense.

Dragon trees are native to the Canary Islands, Cape Verde and Madeira but are very rare in the wild, though extensively planted in parks, gardens, and public squares. Having lived in Tenerife for many years, I was used to seeing them around the island, so was very pleasantly surprised to find specimens of the dragon tree growing well here in Iberia too. I have seen them in Gibraltar and there are some rather splendid examples in the botanical gardens of the University of Lisbon. The dragon tree has also been introduced to the Azores.


The dragon tree grows very slowly and can take around 10 years just to reach 1 metre in height. It can flower for the first time then but will not branch until it has flowered. Each branch then takes a long time before it flowers and branches again. As this process continues the dragon tree produces a characteristic umbrella or mushroom-shaped crown of branches. Dragon trees produce spikes of perfumed whitish flowers which develop into orange-red berries, each one containing one or two very hard and almost globular seeds.

Dragon Tree Berries (Photo: Steve Andrews)

The dragon tree seed takes a month or even longer to germinate from seed and first of all produces a rosette of spiky and leathery evergreen leaves. The silvery and scarred trunk gets formed as the plant grows bigger and the lower leaves die and get removed.
The lower branches produce aerial roots which hang down and have been likened to a dragon’s beard. These roots can fuse with the trunk as they descend and reach the soil and in this way very broad and curious-looking trunks get formed in very old specimens.
Dragon trees are monocotyledons in the Asparagaceae or asparagus family, and do not produce annual rings inside their trunks. Because counting these rings is the usual way of discovering the age of a tree, it is very hard to work out how old a dragon tree actually is. It is done by counting the branching points and estimating how long it has taken to form these.
La Orotava Dragon Tree (Photo: Public Domain)

There was once an enormous dragon tree in La Orotava in Tenerife that was even bigger and older than the Drago Milenario, mentioned earlier. The naturalist and explorer Alexander von Humboldt was amazed when he saw its height and girth. This dragon tree was 70 feet (21 m) tall and 45 feet (14 m) in circumference, and was believed to be 6000 years old. It was destroyed by gales in a terrible storm in 1868.
Heads of a Dragon Tree (Photo: Pixabay)

In Greek Mythology

Not surprisingly there is much folklore and myth built up about this strange tree, and the story goes that the first dragon trees grew when the legendary hero Hercules of Greek mythology killed the hundred-headed dragon Ladon, who was guarding the Garden of the Hesperides. Where the blood of the monster fell little dragon trees sprouted.
Dragon trees are easy enough to grow from seed but you need a lot of patience to wait for them to germinate and to produce much growth, although this plant will make a very interesting houseplant when young and a wonderful addition to the subtropical garden when bigger. They are drought resistant, and in the wild they often grow on rocky hillsides and cliffs.
Ready-grown dragon trees are sometimes available from gardening centres and ornamental plant suppliers and buying one this way could be the easier option for getting hold of one. However you get your own dragon tree, it will certainly make a great talking point, and the plant could still be alive hundreds, and maybe thousands of years, from now!
NB: Originally published in Mediterranean Gardening & Outdoor Living, July 2015.

Monday 11 December 2017

The Ancient Herbalists Assigned Herbs to Planetary Rulers

Why the Ancient Herbalists Assigned Herbs to Astrological Rulers

Nicholas Culpeper (Photo: Public Domain)

As far as we know, there are no more planets in this Solar System that have plants growing on them, though some people have suggested there may be vegetation of some sort on Mars. Ancient herbalists, however, had a system of assigning herbs to planetary rulers; in other words, they claimed that deities linked with the heavenly bodies held dominion over herbs that grow on Earth. Let us take a look at a selection of herbs that were placed under the astrological ruling of other planets, and see why it might have been that herbalists, like Culpeper, decided to assign them to specific heavenly rulers.

Herbs of Mars


Dragon Tree (Photo: Public Domain)


Nicholas Culpeper was one of the most famous herbalists who believed that medicinal and culinary plants could be grouped in this way, according to their various characteristics that were linked to those of a specific god or goddess. For example, because Mars was regarded as the god of war, herbs that had something aggressive about their physical appearance or something that resembled blood, were candidates for being ruled by this planet. The strange Dragon Tree (Dracaena draco) is a perfect example of a herb ruled by Mars because it has sword-shaped leaves, reddish-coloured berries and it bleeds a resinous sap that goes a dark red when dry and is known as dragon’s blood. The Dragon Tree comes from the Canary Islands, and a specimen in the town of Icod de los Vinos is thought to be 1,000-years-old or more. It is known as the "Drago Milenario," has its own park, and is a tourist attraction nowadays.

Steve Andrews explains why the Dragon Tree is a herb of Mars

Mistletoe (Photo: Public Domain)

Herbs of the Sun

Herbs of the Sun include the Sunflower (Helianthus annuus) and the Chamomile (Anthemis nobilis). These two plants have petals that radiate out from a central disk like the rays of the Sun, and the Sunflower is, of course, a bright yellow, which is a colour linked with the central star of our Solar System. The St John’s Wort (Hypericum perforatum) is another herb in this group. It has yellow star-shaped flowers and is harvested in midsummer when the Sun is at its strongest and the days are at their longest. St John’s Wort has become well-known as a herbal antidepressant, and one of its alternative names is Sunshine Herb. Mistletoe (Viscum album) is an herb of the Sun because it was traditionally harvested by Druids at the time of the Winter Solstice. It was cut down from an oak tree using a golden sickle.

White Water Lily (Photo: Public Domain)


Herbs of the Moon

Herbs ruled by the Moon were often ones that are associated with water, because the Moon is linked with the oceans because it causes the tides. White flowers or a silvery colour on the foliage are other characteristics linked with the Moon, and plants that have something to do with the night might also be thought of as herbs of the Moon. The White Water Lily (Nymphaea alba) is a herb ruled by the Moon. This is because of its white flowers, rounded leaves, like full Moons, and because it grows in lakes and ponds. The Jasmine (Jasminum officinale) has white blooms and its perfume is strongest at night. The White Willow (Salix alba) is another herb under the dominion of the Moon. Willows, of course, like to grow by water. The Lettuce species (Lactuca spp.) are ruled by the Moon too. This is because they have a white milky sap if cut. This sap is known as "Lettuce opium" and has similar sedative effects.

Fennel (Photo: Public Domain)

Herbs of Mercury

Mercury was thought of as the messenger of the gods, so herbs ruled by this planet have to really communicate to us in some way. Strongly aromatic herbs were often chosen as herbs of Mercury. The Fennel (Foeniculum vulgare) is a great example of a herb in this group. It communicates to our senses with the visual appeal of its tall graceful stems and ferny foliage, to our tastes with its sweet and spicy flavour like aniseed, and with its scent like anise when crushed. It is used both as a culinary herb and in herbal medicine.

Periwinkle (Photo: Public Domain)

Herbs of Venus

Herbs ruled by Venus, not surprisingly include the Rose, which is a symbol of love and passion, and, of course, Venus is the Goddess of Love. The pretty blue-flowered Periwinkle (Vinca spp.) is another herb in this group, and this is because it has been used in love potions and spells. It was thought that merely sprinkling this herb under the bed of a couple of lovers would increase their passion. In fact, the Periwinkle is a poisonous plant but that never stopped it being linked with love.

Lime Tree (Photo: Public Domain)

Herbs of Jupiter

Jupiter is a giant planet and expansion is one of the characteristics associated with it as a planetary ruler. Various trees come under its dominion because of their spreading branches. One of them is the Lime Tree (Tilia spp.), a tree which gives us lime flower tea, which is known to help relaxation and is very popular in many parts of Europe. It was once thought that anyone suffering from epilepsy would be healed by merely sitting under a Lime's branches. The Oak (Quercus) is a very important and sacred tree for Druids, and it too comes under the rulership of Jupiter.

Deadly Nightshade (Photo: Public Domain)

Herbs of Saturn

Saturn is another gigantic planet and famous for its rings. To the Ancient Herbalists it was associated with the passing of time and with old age and death. It symbolises the “Grim Reaper.” Many poisonous herbs come under its dominion. The Deadly Nightshade (Atropa belladonna), the Henbane (Hyoscyamus niger), Hemlock (Conium maculatum) and Monkshood (Aconitum napellus) are all very dangerous herbs that were once used by witches as ingredients for their “flying ointments.” The Morning Glory (Ipomoea violacea) is another herb under the dominion of Saturn. Its flower has a circular mouth to a funnel-shape and could remind us of the Rings of Saturn. Its seeds, especially in varieties like "Heavenly Blue," contain lysergic acid amide, which as hallucinogenic effects and has often been used by hippies and shamans because of this. This flower looks so beautiful it could be from another world, and its psychoactive effects could make you feel like you were on one.

Morning Glory (Photo: Steve Andrews)

In Conclusion

Thinking about how the herbalists assigned various herbs to the rulership of planetary deities, according to their characteristics, certainly makes for a fascinating study and something for us to think about. My new book Herbs of the Sun, Moon and Planets (Moon Books) explores this subject in greater detail.


Herbs of the Sun, Moon and Planets explained by author Steve Andrews






Tuesday 7 February 2017

Kenfig Pool and Kenfig Sand Dunes

Kenfig Pool (Photo: Public Domain)

I was thinking about places in the countryside that I remember from my childhood and thought I would like to tell you about Kenfig Pool and the sand dunes there. My parents used to take me to this amazing place when I was a boy. We used to go on lots of days out, visiting the countryside. My dad had a blue Vanguard car and this is what we would go out in. Mum and Dad were always encouraging when it came to my interest in nature and they used to buy me lots of books. I had most of the Observer’s Books.


I had the Observer’s Book of British Wild Flowers, and the book on fungi and British birds, and wild animals, and freshwater fish, and even the Observer’s Book of Mosses and Liverworts. That last book was given to me when I was only five, and I know that because it has survived and is at my Dad’s house still, I think, and it is signed to me in the front for my “Fifth birthday.”
Anyway, one place we used to go which I really used to love was Kenfig. It is near Porthcawl but much wilder. There is a big lake called Kenfig Pool and miles and miles of sand dunes.
These dunes have rough paths through them and eventually you can get to a long sandy beach by the sea. It takes well over an hour, as I remember it, to get from the carpark to the beach. But the walk is the real fun of it all. There were so many wild flowers I could look out for and insects and newts and frogs and toads, lizards too.

Kenfig Pool

There were temporary pools that formed in the dunes and they had boggy bits around them with sphagnum moss and bog myrtle. I used to love the smell of marshy ground, especially if there was water mint that added its aroma if you stepped on it or brushed by it as you were walking. In these pools there were newts and water beetles and other water insects. I was always fascinated by water, by ponds, streams and rivers, and rock pools when we went to beaches. I used to wear my Wellingtons so I could investigate the watery places without getting my feet wet, though often I did get water in my boots and my Mum used to get mad at me because of this.
Part of the fascination was I never knew what I would find. I was exploring. It was like it stirred some sort of instinct to hunt for life; I was a hunter-gatherer boy. In those days, I was forever turning stones over, looking under boards and corrugated iron on waste ground, wading around in muddy ponds, seeing what I could catch in rivers and streams, and exploring the railway bank behind where we lived. Nature was my world. It meant much more to me than people and the human world and I hated school.

Viper's Bugloss (Photo: Public Domain)

But getting back to Kenfig, one of the reasons I was so excited by the place was because there were rare wild flowers to be found there. I used to like looking up plants in my wild-flower books. I used to always be on the lookout for new species and hoping I would discover something really rare. Wintergreen, hound’s tongue and many types of orchids were some of the rare plants that grew at Kenfig Dunes. I used to find blue viper’s bugloss and pink centaury and also we used to look out for dewberries, a type of blackberry that grew in the dunes. We used to collect them and take them home so Mum could make pie which we used to have with custard. I used to love eating blackberry pie and custard or just stewed blackberries and custard.
Often I used to go on ahead of my family, or be lagging behind them, as we made our way over the dunes. I was always investigating some marshy ground, turning over any boulders or rubbish I found or searching in the vegetation. I remember there were some parts where you could find common lizards. They would bask on bits of discarded iron sheeting and on boards and other rubbish that littered the dunes even then….this was back in the early 1960s.

Great Green Grasshopper (Photo: Pixabay/Public Domain)

I used to try and spot great green grasshoppers too. These insects are, as their name suggests, very big, the size of locusts. They lived in some parts of the dunes and you could hear them singing but they are really difficult to find. The insects blend in so well with the vegetation and they stop singing as soon as you get anywhere near them. Most frustrating!
Often I found young toads and they seemed happy in the sandy soil. I remember thinking about natterjack toads I had read about in my books. They liked habitats like this but were very rare and didn’t live in South Wales but that didn’t stop me dreaming I would find them there.

Six-Spot Burnet (Photo: Pixabay/Public Domain)

There were lots of butterflies too. Wall butterflies, meadow browns, common blues, small coppers, small heaths and the colourful day-flying moths known as burnet moths. Many of these types of butterfly you hardly ever see in Britain today. It has always depressed me to watch wildlife vanishing. I never thought it would happen when I was younger. I mean, you don’t think about these things. You think everything will always be there somehow.
In spring though it was amazing because that is when there were most wild-flowers in bloom and the ponds were full of water. At this time too, if you happened to get there at the right time, it was possible to see thousands of adult toads making their way to Kenfig Pool. They used to use the lake to breed in and I remember seeing these amphibians all over the ground on the shores of the lake and in the water around the edges. many of them were mated pairs, in what naturalists call amplexus, where the male toad grasps the female with his arms round her and rides on her back.

Common Toad (Photo: Public Domain)

I used to like the idea of how wild it felt once you got away from the road and ‘civilisation.’ It was just miles of sand dunes covered in marram grass and other plants that tolerated the sandy soil, the sky above and hardly a soul ever in sight. Most people stayed in the car-park, few ventured into the dunes and were prepared to make the long trek.
When we were getting near the beach area you could tell. There were visible signs if you knew what to look out for. The sand got more so, less covered in vegetation, and new plants appeared.  The weird and prickly sea holly and sea spurge, food-plant for the rare spurge hawk moth. It was a moth I always hoped to someday see but never did. It is funny how we can live in expectation of some dream coming true, even though it is very much against the odds. It seems easier to do this when you are younger.

Gatekeeper on Sea Holly (Photo: Pixabay/Public Domain)

In this part of Kenfig it was like a zone, a border between the dunes and the beach, a place where different plants would grow. Then there was the top of the beach proper with rotting seaweed, bladderwrack with sandhoppers underneath it. I always used to enjoy moving the weed and seeing the hundreds of little crustaceans jumping about and seeking cover. It fascinated me how they all lived under these piles of seaweed.

Sandhoppers

So Kenfig was very much a part of my childhood and early teens. I don’t know what it is like today, probably spoiled to some degree. Most of my life and growing up I bore witness to seeing places I loved in the countryside getting ruined. I am sure you know what I mean, I mean watching places get built all over, ponds drained, roads built etc etc. Reminds me of the Joni Mitchell song: “They paved paradise and put up a parking lot.” But the wild places are still there in my head, in my memories, and are very much a part of what has made me as I am.

Footnote: This is the slightly edited first chapter of an unpublished book I began writing. More chapters will appear in future blogs.