ADDITIONAL READING 323 



up our present body of knowledge or applied it to human needs. 

 Certain considerations prevented such from being included in this 

 volume, but the reader is referred to Thorpe's Essays in Historical 

 Chemistry and to the popular sketches that have appeared in many 

 magazines; a number of these have been reprinted in the Scientific 

 American Supplement; among them are the following: Becquerel, 

 Supplement No. 1705; Berthelot, 1328 and 1632; Bessemer, 1161; 

 Bunsen, 1241 and 1254; Cavendish, 1554; Crookes, 1672; Men- 

 deleeff, 1627; Alfred Nobel, "His Life and Will," 1361 and 1463. 

 The New International Encyclopaedia contains sketches of the work 

 of most of the prominent men, among whom the following have done 

 much in the field of Chemistry: van Helmont, Becher, Stahl, Black, 

 Priestley, Cavendish, Lavoisier, Dalton, Berzelius, Davy, Bertholet, 

 Bergman, Avogadro, Gay-Lussac, Mitscherlich, Liebig, Wohler, Chev- 

 reul, Dumas, Laurent, Gerhardt, Gmelin, Sainte-Claire Deville, Can- 

 nizzaro, Graham, Kolbe, Bunsen, Koscoe, Berthelot, Wurtz, Hofmann, 

 Eegnault, Pasteur, Baeyer, Mendeleeff, Schorlemmer, Fischer, van't 

 Hoff, Ostwald, Nernst, Arrhenius, Crookes, Dewar, and others. 



