The astronomical tables of Jacob ben David Bonjorn

Communicated by J. North     

David Hume's no-miracles argument begets a valid No-Miracles Argument

Hume's essay ‘Of Miracles’ has been a focus of controversy ever since its publication. The challenge to Christian orthodoxy was only too evident, but the balance-of-probabilities criterion advanced by Hume for determining when testimony justifies belief in miracles has also been a subject of contention among philosophers. The temptation for those familiar with Bayesian methodology to show that Hume's criterion determines a corresponding balance-of-posterior probabilities in favour of miracles is understandable, but I will argue that their attempts fail. However, I show that his criterion generates a valid form of the so-called No-Miracles Argument appealed to by modern realist philosophers, whose own presentation of it, despite their possession of the probabilistic machinery Hume himself lacked, is invalid.     

Saving the Strong Programme? A critique of David Bloor’s recent work

This article critically appraises David Bloor’s recent attempts to refute criticisms levelled at the Strong Programme’s social constructionist approach to scientific knowledge. Bloor has tried to argue, contrary to some critics, that the Strong Programme is not idealist in character, and it does not involve a challenge to the credibility of scientific knowledge. I argue that Bloor’s attempt to deflect the charge of idealism, which calls on the self-referential theory of social institutions, is partially successful. However, I suggest that although the Strong Programme should not be accused of ‘strong idealism’, it is still vulnerable to the criticism that it entails a form of ‘weak idealism’. The article moves on to argue that, contrary to Bloor, constructionist approaches do challenge the credibility of the scientific knowledge that they analyse. I conclude the article by arguing that sociological analyses of scientific knowledge can be conducted without the weak idealism and the credibility-challenging assumptions of the Strong Programme approach.     

'Science Fights Death': David Stark Murray,Science, and Socialism in Interwar Britain

The pathologist David Stark Murray (1900-77) was a founder and leading member of the Socialist Medical Association (SMA), an organization affiliated to the Labour Party and instrumental in shaping its health policy in the period up to 1945. Murray played a prominent role in the SMA as a member of its Executive Committee and as Editor of its journal MedicineToday and Tomorrow. This article examines Murray's popular writings about science during the interwar period, focusing on his emphasis on the relationship between, on the one hand, scientific knowledge and scientific method; and, on the other, a socialized health service and a socialist society.     

An unpublished autograph by Christiaan Huygens: His letter to David Gregory of 19 January 1694

A letter written by Christiaan Huygens to David Gregory (19 January 1694) is published here for the first time. After an introduction about the contacts between the two correspondents, an annotated English translation of the letter is given. The letter forms part of the wider correspondence about the ‘new calculus’, in which L'Hospital and Leibniz also participated, and gives some new evidence about Huygens's ambivalent attitude towards the new developments. Therefore, two mathematical passages in the letter are discussed separately. An appendix contains the original Latin text.     

A frosty disagreement: John Tyndall,James David Forbes,and the early formation of the X-Club

How do glaciers move? This seemingly straightforward question provided the backdrop for a heated debate between the physicists John Tyndall (1820–1893) and James David Forbes (1809–1868) in the late 1850s and early 1860s. Forbes described the motion of glaciers as that of a viscous fluid. After visiting the Alps, Tyndall proposed an alternative theory that combined fracture and regelation. The glacial controversy ensued. Yet the debate was never simply about whether glaciers moved like honey, or if they moved by continuously breaking and re-attaching. This paper shows that the glacial controversy formed an important prelude to the strategies used by the X-Club in reforming science and establishing cultural authority. There was a central difference in the way Forbes and Tyndall presented their scientific arguments. Tyndall and his allies used the changes in the periodical press as part of their strategy for establishing and maintaining cultural and scientific authority. By contrast, Forbes and his supporters, including the North British physicists, were not as quick to make use of this new medium. This paper, therefore, examines in detail the significance of these two publishing strategies in shaping the nature and results of the glacial controversy.     

Cytogenetic studies of Hynobiidae (Urodela). XIV. Analysis of the chromosome of a Chinese salamander, Batrachuperus pinchonii (David)

The chromosome number of a Chinese salamander, Batrachuperus pinchonii, was re-examined. Adults and embryonic specimens had a diploid number of 66, with 33 bivalents during meiosis, in contrast to previous reported results. Furthermore, when C-banding analysis was performed with embryos, chromosomes with banding patterns homoeologous to those of Salamandrella keyserlingii and Hynobius species were found. It appears, therefore, that Batrachuperus, Salamandrella and Hynobius might be derived from a common ancestral species in eastern Asia. Received 22 August 1997; received after revision 14 October 1997; accepted 20 November 1997