Showing posts with label evolution. Show all posts
Showing posts with label evolution. Show all posts

Wednesday, December 15, 2010

The Christmas Rose

'Bright as the silvery plume, or pearly shell,
The snow-white rose, or lily's virgin bell,
The fair HELLEBORAS attractive shone,
Warm'd every Sage, and every Shepherd won.'

With winter closed about us and the last leaves of autumn lost to the four winds, we may look in vain in our parks and gardens for a flower to raise our spirits amid the cold and gloom. That is, were it not for Helleborus niger, or the Christmas rose, which opens its petals in December and continues to bloom throughout the winter months.

A legend tells that the Christmas rose was so named after it flowered in Bethlehem when Jesus was born, watered by the tears of a child with no offering to make. Erasmus Darwin (1731-1802), physician, natural philosopher, and author of the above lines of verse, was less concerned with such pious tales. When he wrote of the flower in The Loves of the Plants (1789) – a poem extolling the new Linnaean system of taxonomy – it was the great scientific advances of his age that spurred his poetic vision.

Just as discoveries in astronomy and geology were providing evidence of the long duration of time, so Linnaean taxonomy allowed the relationships between the great diversity of species, both plant and animal, to be traced. Sex was the descriptive tool for flowering plants, classified by the stamen and further ordered by the structure of the pistil. Though this was felt by some to be embarrassing, and even scandalous, Darwin revelled in the poetic possibilities such an approach offered.

With light, ironic couplets, he created vivid scenes to illustrate the many strategies of plant reproduction, transforming flowers into beings engaged in dramas of love and courtship. Of the Christmas rose, which had 'every Shepherd won', we learn:

Round the gay sisters press the enamour’d bands,
And seek with soft solicitude their hands.
—Ere while how chang’d!—in dim suffusion lies
The glance divine, that lighten’d in their eyes;
Cold are those lips where smiles seductive hung,
And the weak accents linger on their tongue;
Each roseat feature fades to livid green,—
—Disgust with face averted shuts the scene.
This sad ending to an otherwise happy encounter might remain a mystery were it not for the notes that Darwin includes throughout the poem. In a more measured prose, though brimming with the excitement of discovery, he writes:

The Helleborus niger, or Christmas rose, has a large beautiful white flower, adorned with a circle of tubular two-lipp’d nectarics. After impregnation the flower undergoes a remarkable change, the nectaries drop off, but the white corol remains, and gradually becomes quite green. This curious metamorphose of the corol, when the nectaries fall off, seems to shew that the white juices of the corol were before carried to the nectaries, for the purpose of producing honey: because when these nectaries fall off, no more of the white juice is secreted in the corol, but it becomes green, and degenerates into a calyx.
In the example of the Christmas rose, and in the many others that fill the poem, Darwin, in his bold manner, hints at how the vibrant displays of plants have gradually evolved through natural selection, a theory his grandson Charles would provide compelling evidence for some sixty years later.

The Loves of the Plants was wildly successful. Not only was it rapturously received as a poem, it was also one of the first great works of popular science. An earlier book, written as a medical treatise but which has come to be as much admired for its literary scope, also finds cause to mention the Christmas rose. In Robert Burton’s The Anatomy of Melancholy (1621), the plant appears on the frontispiece, and the verse ‘Argument of the Frontispiece’ explains why it is there:

Borage and Hellebor fill two scenes,
Sovereign plants to purge the veins
Of melancholy, and cheer the heart,
Of those black fumes which make it smart;
To clear the brain of misty fogs,
Which dull our senses, and Soul clogs.
The best medicine that e'er God made
For this malady, if well assay'd.
A useful treatment for melancholy though it was considered to be, the caveat at the end of the verse hints at the darker potencies of hellebore, for the same toxins that make it an effective purgative also make it a powerful poison. So should the long winter months or the festive season play heavily upon your humours, it may be as well to keep the Christmas rose at one remove, save an admiring glance while it is in bloom, before the flower fades and the plants of spring once again renew.

The Loves of the Plants was published along with another, equally ambitious work, The Economy of Vegetation, in two volumes as The Botanic Garden (1791). The Wellcome Library holds a number of early editions of this work, along with several early editions of The Anatomy of Melancholy.

The Library also runs two related workshops, Medicine and Literature and Plants and Medicine, which further explore our holdings in these areas. For more information, and to see the associated resource guides, click on the links.

Tuesday, November 24, 2009

24th November 1859


Today is the 150th anniversary of the publication of Charles Darwin’s On the Origin of Species. This first edition consisted of 1,250 copies, with the rapid success of the book leading to a second edition of 3,000 copies being brought out in January 1860.

First editions of Origin of Species still crop up at auction – for example, an auction of a copy, scheduled for today at Christie's in London, has caught the attention of the media.

Pictured above is the first edition of Origin owned by the Wellcome Library. Details from the Library’s accession registers, state that this copy was purchased on 31st October 1962 from the booksellers H K Elliot, for the sum of £42.

As for Charles Darwin, 150 years ago today he was away from his home at Down House, staying in Ikley Moor in Yorkshire. There, he sought the water treatment, for the ill-health which plagued his adult life.

Monday, November 16, 2009

Darwin's Inheritance


This week's Wellcome Library Insight session, is a joint event held with Wellcome Collection.

Darwin's Inheritance will draw on a range of objects, archives and illustrative materials, in order to contextualise the life and work of Charles Darwin and investigate the legacy of his discoveries in the 20th century.

The event will be held this Thursday afternoon (19th November), from 3-4.30pm. Whilst there is no need to book, spaces will be limited.

Wednesday, November 4, 2009

Darwin's Inheritance

Tomorrow's Wellcome Library Insight session, is a joint event held with Wellcome Collection.

Darwin's Inheritance will draw on a range of objects, archives and illustrative materials, in order to contextualise the life and work of Charles Darwin and investigate the legacy of his discoveries in the 20th century.

The event will start at 3pm, and although there is no need to book, spaces will be limited.

Saturday, August 15, 2009

Evolutionary Thinker Slams Vaccination!

The Wellcome Library's Archives and Manuscripts department recently purchased a manuscript letter accompanied by a printed pamphlet by Alfred Russel Wallace (1823-1913). This letter has been added to our small group of writings by the great naturalist, explorer, geographer, biologist and anthropologist (see MS.7798 and MS.7830/54-59).

Wallace was virulently against small-pox vaccination and expressed his views in the forthright pamphlet 'The Army and Navy: A Demonstration of the Uselessness of Vaccination' published by the National Anti-Vaccination League (c.1898) (MS.7798/5). Slamming the practice of re-vaccinating males entering the military services, Wallace insisted that any reduction in Army and Navy small-pox mortality was due in fact to much better sanitation and a great improvement in the food, general treatment and medical attention. He insists the statistics show that “it is the exceptionally unvaccinated that possess the exceptional advantages, while the ‘exceptionally re-vaccinated’ Army and Navy show quite exceptional disadvantages…” in small-pox mortality over the last twenty years. In addition to being scientifically unproven and insufficiently understood, Wallace claimed that vaccination was dangerous because of the dirty conditions in which it was often carried out. Compulsory vaccination (introduced in 1853) was an “injurious operation”, a “Gigantic Medical Imposture”, and was being promoted by doctors driven by economic interests and a government bent on interfering with personal liberty.

In this pamphlet Wallace keenly criticises the report of the Royal Commission of 1884, which ultimately found that vaccination was effective and should remain compulsory. Interestingly, his attack focuses on the apparent denial, misinterpretation and manipulation of disease and mortality statistics. As we can tell from his letter to William Young on 14th June 1884 (MS.7798/4), Wallace was indeed concerned about using valid and accurate statistics. He tells Young that he cannot put his name to an anti-vaccination pamphlet unless he can personally “verify the facts & figures from the original authorities”. In reality however, ‘lies, damned lies, and statistics’ were used by both pro and anti vaccination camps to support their arguments and disparage each other. The 1884 Royal Commission found discrepancies in the statistical evidence Wallace had submitted and The Lancet pointed out that the 1898 pamphlets he put his name to (including ‘Vaccination a Delusion’) repeated much of the erroneous information that they had condemned in 1884!

It seems that whilst Wallace was right to point out the risks of vaccinating in a filthy environment, and the tangible benefits resulting from improved sanitation, food and medical treatment, he was, it turns out, on the loser’s side of the vaccination issue. Considering Wallace’s interest and opinions covered a wide range of issues it is not surprising that he was instinctively right about some things - natural selection, the impact of human activities on the natural world - but on distinctly dodgy ground with his views on mesmerism, phrenology and spiritualism.

Author: Amanda Engineer

Friday, February 6, 2009

Tree of Life

As part of its contribution to Darwin200, the Wellcome Trust and its partners have created the website Tree of Life featuring a video on evolution presented by David Attenborough. The website includes an interactive Tree of Life showing the development of life on earth. To keep abreast of news regarding the Tree of Life project, or comment on it, view the blog.