Thomas Pennant (1726 98) was a keen geologist, naturalist and antiquary. Linnaeus supported his election to the Royal Swedish Society of Sciences in 1757, and in 1767 he became a Fellow of the Royal Society. His History of Quadrupeds (1793), aimed to promote natural history among a wider readership, originated in an informal index to John Ray's Synopsis of 1693. In his preface, Pennant acknowledges the monumental Histoire naturelle by the Comte de Buffon, as well as works by Klein (1751), Brisson (1756), and particularly the work of Linnaeus, though Pennant strongly disagreed with Linnaueus's...

This book, published in 1881, was the result of many years of experimentation and observation by Darwin in the open-air laboratory of his garden at Down House in Kent. As he wrote in his introduction, the subject of soil disturbance by worms 'may appear an insignificant one, but we shall see that it possesses some interest'. He goes on to demonstrate the immensity in size and over time of the accumulated tiny movements of soil by earthworms, and their vital role in aerating the soil and breaking down vegetable material to keep the topsoil, the growing medium for all plant life and thus vital...

In his introduction, Darwin reveals that for many years he had no intention of publishing his notes on this topic, 'as I thought that I should thus only add to the prejudices against my views'. By 1871, he felt that his fellow scientists would show a greater openness of mind to his arguments, even when taken to their logical conclusion and applied to the descent of man from the apes the aspect of his theory which had been so widely mocked since the notorious question asked by Bishop Wilberforce at the Oxford debate of 1860: was it through his grandmother or his grandfather that Thomas Huxley,...

In 1911, Francis Kingdon Ward (1885 1958) set off on his first solo expedition and collected hundreds of plant species, many previously unknown. From Burma, he headed into the Hengduan Mountains of north-western Yunnan province, exploring along the Mekong, Yangtze and Salween rivers in the region between eastern Tibet and western Sichuan. In 2003, this area was designated a UNESCO World Heritage Site. One of the world's most biodiverse temperate zones, its extraordinary topography arises from its position at the collision point of tectonic plates. This fascinating book, first published in...

The results of experiments on plants which showed evolutionary adaptation in their highly specialised methods of obtaining nutrients.

Five pamphlets which illustrate the world of Darwin's mentors in Cambridge, and the development of the sciences as academic subjects.

Thomas Henry Huxley (1825 95) became known as 'Darwin's bulldog' because of his forceful and energetic support for Darwin's theory, especially at the notorious British Association meeting in Oxford in 1860. In fact, Huxley had some reservations about aspects of the theory, especially the element of gradual, continuous progress, but in public he was unwavering in his allegiance, saying in a letter to Darwin 'As for your doctrines I am prepared to go to the Stake if requisite'. In his 1870 essay collection Lay Sermons, Addresses, and Reviews, of which the title alone was designed to provoke...

Thomas Henry Huxley (1825 95) became known as 'Darwin's bulldog' because of his forceful and energetic support for Darwin's theory, most famously at the legendary British Association meeting in Oxford in 1860. In fact, Huxley had some reservations about aspects of the theory, especially the element of gradual, continuous progress, but in public he was unwavering in his allegiance, saying in a letter to Darwin 'As for your doctrines I am prepared to go to the Stake if requisite'. In his 1892 Essays upon Some Controverted Questions, Huxley collected some of his previously published writings, of...

Alfred Russel Wallace (1823 1913) is regarded as the co-discoverer with Darwin of the theory of evolution. It was an essay which Wallace sent in 1858 to Darwin (to whom he had dedicated his most famous book, The Malay Archipelago) which impelled Darwin to publish an article on his own long-pondered theory simultaneously with that of Wallace. As a travelling naturalist and collector in the Far East and South America, Wallace already inclined towards the Lamarckian theory of transmutation of species, and his own researches convinced him of the reality of evolution. On the publication of On the...

Erasmus Darwin (1731 1802) is remembered not only as the grandfather of Charles but as a pioneering scientist in his own right. A friend and correspondent of Josiah Wedgwood, Joseph Priestley and Matthew Boulton, he practised medicine in Lichfield, but also wrote prolifically on scientific subjects. He organised the translation of Linnaeus from Latin into English prose, coining many plant names in the process, and also wrote a version in verse, The Loves of Plants. The aim of his Zoonomia, published in two volumes (1794 6), is to 'reduce the facts belonging to animal life into classes,...