Instructions to collectors: John Walker (1973) and Robert Jameson (1817); with biographical notes on James Anderson (LL.D.) and James Anderson (M.D.)

Five recently discovered letters written by James Ferguson, FRS (1710–1776) while he was on a lecture tour in 1771 add substantially to what was previously known about his activities at that time. Together with newspaper advertisements and other correspondence, they not only enable his itinerary to be reconstructed in also reveal some of his own thoughts at the time and the difficulties that he had to contend with. On this particular tour, Ferguson was away from his London base for at least seven months, visiting Birmingham, Kidderminster, Worcester, Newcastle-under-Lyme, Cheadle (Staffs.), and Derby. During this period he delivered his course of 12 lectures on Experimental Philosophy at least eight times. Amongst the people that he met were Matthew Boulton, Josiah Wedgwood, and John Whitehurst, as well as the recipient of the letters, James Beresford of Bewdley, Worcestershire.

In this paper the opportunity has been taken to present also an outline of the gradual evolution of Ferguson's lecturing career, leading up to his situation in the 1770s, as much of the relevant source material now available was unknown to his nineteenth-century biographer, Ebenezer Henderson.     

Bailey Willis (1857-1949): Geological Theorizing and Chinese Geology

Bailey Willis was the second major American geologist to undertake reconnaissance research in China--in the years 1903-04. Together with the stratigrapher Eliot Blackwelder, topographer Harvey Sargent, and guide Li Shan, he travelled first in Shandong Province, then from Peking to Xian, thence across the mountains into Sichuan, and then by river via the Yangzi Gorges to Shanghai. It was hoped that they would discover the primeval ancestor of trilobites in China, but the search proved unsuccessful. Willis's stratigraphic findings are described, as are his structural interpretations of what he observed in China. His work in China gave rise to some unfounded speculations about the possible causes of lateral Earth movements, due to rocks of different densities being adjacent to one another in the Earth's crust. These ideas were followed by several other 'theories of the Earth' during Willis's later career, some of which were also probably related to his experiences in China. He seemingly practised the formulation of 'multiple working hypotheses'. The paper also discusses the influence of Willis's survey and stratigraphic work on the subsequent development of Chinese geology, with particular attention given to the various meanings of the term 'Sinian System'. Mention is made of later work in China on Lower Cambrian stratigraphy.     

Frederick Pavy (1829-1911) and his opposition to the glycogenic theory of Claude Bernard

For more than 50 years the Guy's Hospital physician Frederick Pavy (1829-1911) attempted to discredit the theory of his erstwhile teacher, Claude Bernard, that liver glycogen was broken down to supply sugar to the systemic circulation. His opposition was driven by his clinical perceptions and was based on two assumptions: the first was that the kidney was a simple filter through which small molecules would diffuse, so that sugar had to be prevented from reaching the systemic circulation. For Pavy, the liver was the barrier. The second was teleological: he could not believe that nature would operate in what he saw as a defective way, i.e. converting sugar into glycogen and then back again. At the beginning of his long working life Pavy regarded himself as a physiologist and was critical of the stagnancy of English physiology which was kept afloat by amateurs like himself in whatever time they could spare from busy private practice. At the end he came to see his own view of carbohydrate metabolism as symbolic of the schism between responsible clinicians (himself) and irresponsible daydreaming physiologists (his opponents).     

Realism on the rocks: Novel success and James Hutton's theory of the earth

In this paper, I introduce a new historical case study into the scientific realism debate. During the late-eighteenth century, the Scottish natural philosopher James Hutton made two important successful novel predictions. The first concerned granitic veins intruding from granite masses into strata. The second concerned what geologists now term “angular unconformities”: older sections of strata overlain by younger sections, the two resting at different angles, the former typically more inclined than the latter. These predictions, I argue, are potentially problematic for selective scientific realism in that constituents of Hutton's theory that would not be considered even approximately true today played various roles in generating them. The aim here is not to provide a full philosophical analysis but to introduce the case into the debate by detailing the history and showing why, at least prima facie, it presents a problem for selective realism. First, I explicate Hutton's theory. I then give an account of Hutton's predictions and their confirmations. Next, I explain why these predictions are relevant to the realism debate. Finally, I consider which constituents of Hutton's theory are, according to current beliefs, true (or approximately true), which are not (even approximately) true, and which were responsible for these successes.     

Climates as commodities: Jean Pierre Purry and the modelling of the best climate on Earth

The paper looks at how an early eighteenth-century climatological model of the ‘best climate’ on Earth became a platform for political, economic, and demographic action of extraordinary significance for the colonization of new commodity environments. It analyzes the science used by an early modern business adventurer to model ‘climate’ as an economic tool informing imperial governance and exploitation of local resources. Jean Pierre Purry’s construction of ‘model climate’ portrayed North Carolina’s township at Yamassee River as an ideal environment geared toward mercantilist principles of trade but also as a model community based on skilled labor and optimal climatic capital. His climatological analysis was a purposeful act of policy making based on a science of colonial expansion similar to more recent calls at economic modelling of future climate impact.