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

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

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...

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,...

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...

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...

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...

Mary Somerville (1780 1872) would have been a remarkable woman in any age, but as an acknowledged leading mathematician and astronomer at a time when the education of most women was extremely restricted, her achievement was extraordinary. Laplace famously told her that 'there have been only three women who have understood me. These are yourself, Mrs Somerville, Caroline Herschel and a Mrs Greig of whom I know nothing.' Mary Somerville was in fact Mrs Greig. After (as she herself said) translating Laplace's work 'from algebra into common language', she wrote On the Connexion of the Physical...

Darwin's detailed study of the different effects of cross- and self-fertilisation in plants.

John Pringle Nichol (1804 59) was a Scottish polymath whose major interests were economics and astronomy; he did much to popularise the latter by his writings. He became Regius Professor of Astronomy at Glasgow in 1836, and in the following year published Views of the Architecture of the Heavens which was immediately successful. George Eliot wrote in a letter of 1841, 'I have been revelling in Nichol's Architecture of the Heavens and Phenomena of the Solar System, and have been in imagination winging my flight from system to system, and from universe to universe ...' Nichol was a supporter of...