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This paper uses a historical case study, the controversy over the possibility of climatic extremes caused by hydrogen bomb tests on Pacific Ocean atolls during the 1950s, to show how, in a context of few scientific data and high uncertainty, political affiliations and public concerns shaped two types of argumentation, the “energy” and the “precautionary” arguments.

Systematic analysis of publications 1954–1956: scientific and semiscientific articles, publications of C.-N. Martin and contemporary newspaper articles, especially from the Asia–Pacific region.

First, epistemological and scientific reasoning about the likelihood of extreme natural events aligned to political convictions and pressure. Second, a geographical and social distribution of arguments: the relativizing “energy argument” prevailed in English-language scientific journals, while the “precautionary argument” dominated in popular journals and newspapers published worldwide. Third, while the “energy argument” attained general scientific consensus within two years, it lost out in the long run. The proponents of the “precautionary argument” raised relevant research questions that, though first rejected in the 1950s, later exposed the fallacies of the “energy argument” (shown for the case of the climatologist William W. Kellogg).

In contrast to the existing secondary literature, this paper presents a balanced view of the weaknesses and strengths of two lines of arguments in the 1950s. Further, this historical study sheds light on how once-discarded scientific theories may ultimately be reconsidered in a completely different political and scientific context, thus justifying the original precautionary argument.

Current research suggests a positive link between followers’ perceptions of their leaders’ expression of positive emotions and followers’ trust in their leaders. Based on the theories about the social function of emotions, the authors aim to qualify this generalized assumption. The purpose of this paper is to demonstrate that followers’ perceptions of leaders’ expressions of specific positive emotions – namely, pride and gratitude – differentially influence follower ratings of leaders’ trustworthiness (benevolence, integrity, and ability), and, ultimately, trust in the leader.

The hypotheses were tested using a multimethod approach combining experimental evidence (n=271) with longitudinal field data (n=120).

Both when experimentally manipulating leaders’ emotion expressions and when measuring followers’ perceptions of leaders’ emotion expressions, this research found leaders’ expressions of pride to be consistently associated with lower perceived benevolence, while leaders’ expressions of gratitude were associated with higher perceptions of benevolence and integrity.

This paper theoretically and empirically establishes that leaders’ expressions of discrete positive emotions differentially influence followers’ trust in the leader via trustworthiness perceptions.

THE list given below is based on the selection presented in Dr. Joris Vorstius's Ergebnisse und Fortschritte der Bibliographie in Deutschland seit dem ersten Weltkrieg (Zentralblatt für Bibliothekswesen, Beiheft 74. Leipzig: Harrassowitz 1948, pp.v.172). Up to recently Dr. Vorstius was Director of the Öffentliche Wissenschaftliche Bibliothek in Berlin, the former Prussian State Library, and he has been the editor of the Zentralblatt since 1947. In addition to this survey of bibliographical work done in Germany, he has recently published a study of subject cataloguing in several of the large German learned libraries (Die Sachkatalogisierung in den wisseuschaftlichen Allgemeinbibliotlieken Deutschlands. Leipzig: Harrassowitz 1948, pp.viii.58) and a revised edition of his sketch of library history (Grundzüge der Bibliotheksgeschichte. Vierte, erweiterte Auflage. Leipzig: Harrassowitz 1948, pp.vii.114). In his survey of German bibliography Dr. Vorstius has aimed at making his selection in such a manner as to give a representative cross‐section of the bibliographies devoted to all important fields of scholarship. Works are listed according to their significance irrespective of the form in which they were issued, as monographs, appendixes to books, or contributions to serials. As the book is not likely to come the way of many British librarians, it has been thought useful to give a tabulated survey of bibliographical work done in Germany during the war years covering the period when there was least cultural contact between Germany and England. While thus cutting off a good slice at the beginning of the period covered by Dr. Vorstius's book, I have been able to extend the time range to include the post‐war period. When Dr. Vorstius surveyed the field in 1947, German bibliographical activity had reached a nadir after declining steeply from the second half of the war onwards. For the whole of 1945 Dr. Vorstius lists one single bibliography, devoted to the literature on doves and pigeons. From this trough of the graph, a slightly ascending curve led to the compilation of the first three German post‐war bibliographies, all of them black lists of Nazi literature compiled for purge purposes. That was the only sign of any revival of bibliographic production Dr. Vorstius was able to record. Writing two years later I have been in a position to expand the post‐war component of the list considerably, at least, relatively speaking. Again, in a field where Germany could take a justified pride in her achievement, in the publication of the numerous current bibliographies, Dr. Vorstius's survey of the numerous Zentralblätter and Jahresberichte is a list of war casualties. All these publications had come to an end, most of them long before the end of the war. Dr. Vorstius's book only records the revival of two, the Deutsche National‐bibliographie and the Deutsche Literaturzeitung. Now the list is considerably longer. Considerations of space have prevented me from listing all the extinct current bibliographies with their dates of stoppage under their appropriate headings; I have limited myself to listing those which have been revived or started since the end of the war and those which were started (and in practically all cases came to a speedy end) during the war.