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THE POPULAR SCIENCE MONTHLY 



but by his personal charm. He was 

 social by nature, keenly humorous, 

 warm and faithful in his attachments, 

 full of the zest of life. He was pro- 

 foundly modest and seemed never to 

 know how high his abilities were esti- 

 mated by others. He never quarrelled, 

 but was for every good cause he cham- 

 pioned a good fighter. Perhaps his 

 most distinguishing trait was his re- 

 markable combination of keen prac- 

 tical sense in the use of means with 

 enthusiasm in the pursuit of ideal 

 aims. With all his buoyant vitality, 

 Avith all his eager interest in men and 

 affairs, he was essentially an idealist, 

 who won the love and admiration of 

 many friends both in Europe and 

 America. ' ' 



SCIENTIFIC ITEMS 

 We record with regret the deaths of 

 Dr. Herman Knapp, professor emeritus 

 of ophthalmology in Columbia Univer- 

 sity; of Dr. Charles Stedman Bull, 

 professor of ophthalmology in the med- 

 ical department of Cornell University; 

 of Mr. T. Eupert Jones, F.R.S., for- 

 merly professor of geology at Sand- 

 hurst; of Major George Lamb, director 

 of the Pasteur Institute of India, and 

 of Dr. Pehr Olsson-Seffer, botanist of 

 the Mexican government, murdered by 

 brigands in the Mexican insurrection. 

 At the meeting of the National 

 Academy of Sciences on April 20, the 

 following were elected to membership : 

 Edward Emerson Barnard, astronomer, 

 Yerkes Observatory, Williams Bay, 

 Wis. ; Edward Burr Van Vleck, pro- 

 fessor of mathematics, University of 

 Wisconsin; John Filmore Hayford, 

 director of the College of Engineering, 



Northwestern University; Edwin Her- 

 bert Hall, professor of physics, Har- 

 vard University; Julius Oscar Steiglitz,,. 

 professor of chemistry, University of 

 Chicago; Bertram Borden Boltwood,. 

 professor of radio -chemistry, Yale 

 University; James Purman Kemp, pro- 

 fessor of geology, Columbia Univer- 

 sity; Arthur Louis Day, director of 

 the Geophysical Laboratory of the- 

 Carnegie Institution; Robert Aimer 

 Harper, professor of botany at the 

 University of Wisconsin. Foreign as- 

 sociates were elected as follows: Pro- 

 fessor Ernest Rutherford, University 

 of Manchester, England; Professor 

 Vito Volterra, University of Rome, 

 Italy. At the annual dinner of the 

 academy on April 19 the Draper Gold 

 Medal was presented to Mr. C. G. 

 Abbot, of the Smithsonian Institution,. 

 for his researches on the infra-red re- 

 gion of the solar spectrum and his- 

 accurate measurements, by improved 

 devices, of the solar "constant" of 

 radiation. 



Sir J. J. Thomson, Cavendish pro- 

 fessor of experimental physics in the 

 University of Cambridge, and Dr. D. 

 Hilbert, professor of mathematics at 

 Gottingen, have been elected corre- 

 sponding members of the Paris Acad- 

 emy of Sciences. 



Dr. Frederic A. Lucas, curator in 

 chief of the Museum of the Brooklyn 

 Institute, and formerly curator of the 

 h. S. National Museum, has been 

 elected director of the American Mu- 

 seum of Natural History. — Dr. Elmer 

 Ellsworth Brown, U. S. Commissioner 

 of Education, has been elected chan- 

 cellor of New York University. 



