Ueber Ketene. Zweite Mittheilung: Dimethylketen

Hippokrates Ueber die Krankheiten III

irrelevant. Chemistry and the relations between science, technology, and industry are well surveyed by Crosland and Cardwell respectively. Forbes's essay on mathematical cosmography is not a comprehensive account but the story (albeit interesting) of a few German cartographers. Compared with other recent collections of essays in the history of science, this volume parades no party line: witness...

Medizin, Naturwissenschaft, Technik und das Zweite Kaiserreich

GERALD LEMAINE, ROY MACLEOD, MICHAEL MULKAY and PETER WEINGART (editors), Perspectives on the emergence of scientific disciplines, The Hague and Paris, Mouton, (West Berlin, W. de Gruyter), 1976, 8vo, pp. xi, 281, DM.50.00. The disciplines represented in the twelve essays which comprise this book include agricultural chemistry, thermodynamics, physical chemistry, biophysics, x-ray protein cryst...

Ueber Das Verschwinden Der Θ-functionen

A Convenient Ketene Generator

A simple apparatus for the preparation of ketene (CH,--C =O) from acetone vapor is described by Ott, Schr6ter, and Packendofff (1). A more rigid and convenient apparatus has been designed and used by the writer (Fig. 1). Pyrex glass used in both the filamentsupport and bulb reduces the possibility of cracking or breaking. The removable filament-support makes it possible to replace the filament ...

Ueber Die Fortpflanzung Ebener Luftwellen Von Endlicher Schwingungsweite

[Aus dem achten Bande der Abhandlungen der Königlichen Gesellschaft der Wissenschaften zu Göttingen. 1860.]