John McEvoy

In a sermon on the words of St Paul, «And they that are Christ's, have crucified their flesh, with the vices and concupiscences», Robert Grosseteste expressed that interior spirituality of the cross which he shared, notably, with the Franciscans. The sermon is located in his sermon-collection but it has not been edited or studied hitherto. Brief though it is, it merits publication and translation, for it instantiates its author's biblical and practical approach both to theology and to the interior life of the believer.

The appearance of Priestley's electrical work as a brief and irrelevant prelude to his more substantial chemical enquiries may explain why it has been strangely overlooked by historians of science. It was only fairly recently that Sir Philip Hartog sought to rectify this situation with the affirmation that ‘Priestley's electrical work offers the key to Priestley's scientific mind’. Attacking traditional chemical historiography for tracing Priestley's opposition to Lavoisier's theory to a deficiency in his scientific sensibilities, Hartog insisted that Priestley's natural philosophy can properly be understood only in relation to his ‘profound convictions on scientific method’ as fully expressed in the History of electricity. Only thus would Priestley's scientific thought be related correctly to his ‘work as a whole’

The works of Paul K. Feyerabend, Norwood Russell Hanson and Thomas S. Kuhn have come to occupy a central place in the annals of contemporary philosophy of science. Some of their contemporaries,, tend to regard them as the vanguard of a new “revolutionary” intellectual movement. Reacting against the views of their positivist predecessors, they embrace and propagate the idea that “pervasive presuppositions” are fundamental to scientific investigations. Thus, Feyerabend thinks that, “... scientific theories are ways of looking at the world; and their adoption affects our general beliefs and expectations, and thereby also our experiences and our conception of reality”. This is in stark contrast to the positivist view that the aim of science is the systematization of experience that exists independently of any scientific theories. This new view of scientific theories also involves a “radical” conception of the nature of theoretical change. Rejecting the positivist notion of any constant element through such change, Kuhn regards a basic theoretical change as a conceptual revolution and “wants to say that after a revolution scientists are responding to a different world”. Hanson uses the phrase ‘theory-loaded’ to give expression to a view of the semantic content of observation statements that follows from this general position.

In recent years the Chemical Revolution has become a renewed focus of interest among historians of science. This interest isshaped by interpretive strategies associated with the emergence anddevelopment of the discipline of the history of science. The disciplineoccupies a contested intellectual terrain formed in part by thedevelopment and cultural entanglements of science itself. Threestages in this development are analyzed in this paper. Theinterpretive strategies that characterized each stage are elucidatedand traced to the disciplinary interests that gave rise to them. Whilepositivists and whigs appropriated the history of science to thejustificatory and celebratory needs of science itself, postpositivistslinked it to philosophical models of rationality, and sociologists ofknowledge sought its sociological reconstruction. Since none of thesestrategies do justice to the complexity of historical events, a modelof the Chemical Revolution is outlined which upholds the autonomyand specificity of history and the methods used to study it.