536 ■ 



SCIENCE 



[Vol. LV, No. 1429 



"Les guirlandes insulaires du Paciflque et la 

 formation des montagnes." On May 1 he lec- 

 tured at the University of Grenoble. Pro- 

 fessor Hobbs has now sailed for the West 

 Indies and South America, with the intention 

 to return to Ann Arbor at the end of August. 



Dr. Irving Langmxjir, of the General Elec- 

 tric Company, spoke before the Delaware sec- 

 tion of the American Chemical Society in Wil- 

 mington on April 19 on "Molecular structure 

 and its relation to chemical valence." 



Professor H. A. Wilson, of the Rice Insti- 

 tute, Texas, will lecture at the summer session 

 of the University of Chicago on "The electrical 

 properties of gases." 



The following public lectures will be given 

 at University College, London, during the 

 present term: "Atoms, molecules and chemis- 

 try," three lectures by Sir J. J. Thomson; 

 "Insects and disease," four lectures by Sir 

 Arthur Shipley; "Recent discoveries in 

 Egypt," by Professor Flindei-s Petrie; and 

 "The expansion of European civilization," four 

 lectures, by Professor W. R. Shepherd, of 

 Columbia Univeraity. 



The Linacre Lecture of the University of 

 Cambridge was delivered on May 6 by Sir 

 Humphry Rolleston, on the subject of "Med- 

 ical aspects of old age." 



The Journal of the American Medical Asso- 

 ciation states that the National Academy of 

 Medicine of Venezuela has decided to hold a 

 celebration of Pasteur's centenary. A prize, 

 consisting of a gold medal and 2,000 bolivares, 

 will be granted to the author of the best work 

 presented. A portrait of Pasteur will be 

 placed in the assembly room of the academy 

 and a special medal will be engraved. 



The sixteen hundred volume library of the 

 late George Trumbull Ladd, professor of moral 

 philosophy and metaphysics at Yale Univer- 

 sity, has been given to ithe Hatch Library of 

 Western Reserve University. Professor Ladd 

 was a graduate of Western Reserve College in 

 the class of 1864. 



Carl Lumholtz, born in Noi-way in 1851, 

 formerly engaged in anthropological explora- 

 tion and research for the American Museum 



of Natural History and other institutions, died 

 at Saranac Lake, N. Y., at the beginning of 

 the present month. 



Sir Alfred Pearce Gould, late vice-chan- 

 cellor of the University of London, and presi- 

 dent of the Medical Society of London and of 

 the Rontgen Society, died on April 19 at the 

 age of seventy years. 



Professor Rene Bohn, a director of the 

 Badisehe Anilin u. Sodafabrik, and one of the 

 pioneers of the German coal-tar dye industry, 

 has died at the age of sixty years. 



The death is announced of Dr. Isoji Ishiguro, 

 the Japanese engineer. 



There will be a meeting of the Society of 

 Plant Ph^'siologists with the American Asso- 

 ciation for the Advancement of Science at Salt 

 Lake City from June 22 to 24. Papers to be 

 presented before the physiological section 

 should be mailed to E. T. Bartholomew, School 

 of Tropical Agriculture, Riverside, California, 

 before June 1. 



Owing to serious flood conditions of the Mis- 

 sissippi River, the annual meeting of the Amer- 

 ican Oil Chemists' Society, which was to have 

 been held at the Grunewald Hotel, New Or- 

 leans, on May 8 and 9, has been postponed to 

 June 5 and 6 at the same place. 



The alumni members of Sigma Xi of South- 

 ern California held a meeting on the evening 

 of May 24, at the Norman Bridge Laboratory 

 of Physics, Pasadena, California, and organ- 

 ized the 'Sigma Xi Club of Southern Califor- 

 nia." About fifty members, representing six- 

 teen institutions, were present. The following 

 offieei-s were elected : Dr. W. L. Hardin, Los 

 Angeles, president; Dr. Paul W. Merrill, Mt. 

 Wilson Observatory, Pasadena, secretary; Dr. 

 E. E. Chandler, Occidental College, treasurer. 

 There are more than a hundred alumni mem- 

 bers of Sigma Xi in Los Angeles, Pasadena, 

 and near-by towns. 



The British Institute of Physics, of which 

 Sir J. J. Thomson is president, has arranged 

 for the delivery of a course of public lectures 

 with the viev/ of indicating the growing im- 

 portance and place which physics now holds in 

 industry and manufacture. The first of these 

 lectures was delivered by Professor A. Barr of 



