William Bateson (1861 1926) began his academic career working on variation in animals in the light of evolutionary theory. He was inspired by the rediscovery of Gregor Mendel's work on plant hybridisation to pursue further experimental work in what he named 'genetics'. He realised that Mendel's results could help to solve difficult biological questions and controversies which others had glossed over, and to challenge assumptions underlying evolution as it was understood at the time. After two years as Professor of Biology at Cambridge he left in 1910 to become Director of the newly founded...

William Bateson (1861 1926) began his academic career working on variation in animals in the light of evolutionary theory. He was inspired by the rediscovery in 1900 of the 1860s work on plant hybridisation by the Austrian monk Gregor Mendel (included here as an appendix) to pursue further experimental work in what he named 'genetics'. He realised that Mendel's results could help to solve difficult biological questions and controversies and to challenge the status quo in evolutionary studies. Annoyed by the 'apathetic' stance of his evolutionist colleagues, and incensed by a scathing critique...

Astronomer and philosopher Sir John Herschel (1792 1871), the son of William and the nephew of Caroline, published his 1833 Treatise on Astronomy in the 'Cabinet Cyclopaedia' series of which the first volume had been his enormously successful Preliminary Discourse on the Study of Natural Philosophy. He is regarded as the founder of the philosophy of science, and made contributions in many fields including mathematics, the newly discovered process of photography, and the botany of southern Africa, which he studied while making astronomical observations of the southern hemisphere, and where he...

The geological writings of Hugh Miller (1802 56) did much to publicise this relatively new science. After an early career in banking in Scotland, Miller became editor of a newly founded Edinburgh newspaper, The Witness, in which he published a series of his own articles based on his geological research, a collection of which was issued as a book, The Old Red Sandstone, in 1841, and led to the Devonian geological period becoming known as the 'Age of the Fishes'. Footprints of the Creator (1849) described his reconstruction of the extinct fish he had discovered in the Old Red Sandstone and...

William Bateson claimed at the Darwin Centenary in 1909 that Samuel Butler (1835 1902) was 'the most brilliant and by far the most interesting of Darwin's opponents, whose works are at length emerging from oblivion.' Best remembered today as the author of the novels Erewhon and The Way of All Flesh, he also wrote on a range of subjects from translations of Homer to studies of evolutionary thought. In his Life and Habit (published in 1878) Butler contended that much of inheritance was based on habit making a feature ingrained, to the extent that it could pass between generations. However, he...

William Carpenter (1813 85) was trained as a doctor; he was apprenticed to an eye surgeon, and later attended University College London and the University of Edinburgh, obtaining his M. D. in 1839. Rather than practising medicine, he became a teacher, specialising in neurology, and it was his work as a zoologist on marine invertebrates that brought him wide scientific recognition. His Principles of Mental Physiology, published in 1874, developed the ideas he had first expounded in the 1850s, and expounds the arguments for and against the two models of psychology then current automatism, which...

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...

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

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...

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...