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SCIENCE 



[N. S. Vol. XXXIII. No. 853 



Mr. K. F. Kellerman, physiologist in the 

 Bureau of Plant Industry, Washington, sailed 

 for Europe on April 25 and will spend three 

 months in a study of the progress being made 

 in the investigation of soil bacteriology in 

 Germany, Russia, France and England. 



Dr. Charles B. Eobinson expects to return 

 to this country about the end of July. Dr. 

 Robinson has been in the service of the 

 Philippine Bureau of Science for over three 

 years and it is understood has been collecting 

 this spring along the Indo-China coast, a re- 

 gion very little known botanically. 



On April 2Y Professor E. W. Wood, of the 

 Johns Hopkins University, began a course of 

 three lectures at the Royal Institution on 

 " The Optical Properties of Metallic Vapors," 

 these being the Tyndall lectures. 



Sir John Murray lectured before the New 

 York Academy of Sciences on April 24, his 

 subject being " The Depths of the Sea." On 

 April 27 he lectured before the Geographical 

 Society of Chicago on " The Ocean." After 

 the lecture the Helen Culver gold medal of 

 the society was conferred upon him. 



Dr. Jacques Loeb, of the Rockefeller Insti- 

 tute for Medical Research, delivered the ad- 

 dress at the annual conversational meeting of 

 the Philadelphia Pathological Society, on 

 April 27. His subject was " Fertilizing Ef- 

 fects of the Extracts of Tissues, Blood and 

 Sperm." After the address a reception was 

 given to Dr. Loeb at the University Club. 



Professor Lafayette B. Mendel, of the 

 Sheffield Scientific School, Yale University, 

 gave two lectures on " Nutrition " at Goucher 

 College, Baltimore, on April 27 and 28. 



Professor E. L. Mark, director of the 

 zoological laboratories of Harvard University, 

 gave an illustrated lecture before the depart- 

 ments of geology and biology of Colgate Uni- 

 versity on the evening of April 21. His sub- 

 ject was " Some Vestigial Organs in Man." 



Dr. Maximilian Toch, head of the firm of 

 Toch Brothers, manufacturers of paints, will 

 give three lectures before the students of the 

 Engineering School of Columbia University, 

 on " Paints, Pigments and Drying Oils." 



Dr. Toch was at one time assistant professor 

 in Columbia. 



Professor G. W. Eitchey, of the Mount 

 Wilson Solar Observatory, at Pasadena, Cal., 

 gave a public lecture under the auspices of 

 the University of Minnesota Chapter of the 

 Sigma Xi on April 21 on the subject " The 

 Largest Telescope in the World and its use 

 in Photographing the Heavens." 



Professor Svante Arrhenius, Stockholm, 

 Sweden, will deliver the third Weir Mitchell 

 lecture of the Philadelphia College of Physi- 

 cians on May 16. The subject will be " The 

 Passage of Microorganisms through Inter- 

 stellar Space : a Theory bearing on the Origin 

 of Life on a Planet." 



A life of Mrs. Ellen H. Richards is to be 

 written with the approval of Professor Rich- 

 ards. It is hoped that the story of her life 

 may be of such a character that it will not 

 only interest those who have known Mrs. Rich- 

 ards either personally or through her work, 

 but will also serve to extend her influence and 

 to inspire future workers. Any material, 

 such as letters, photographs, characteristic 

 sayings and incidents, which will help to show 

 her personality and her interests and activi- 

 ties will be valuable to the editor. Miss Caro- 

 line L. Hunt, and should be sent to her at 

 32 Eliot Street, Jamaica Plain, Mass. 



Dr. Charles Stedman Bull, professor of 

 ophthalmology in the medical department of 

 Cornell University, died on April 17, aged 

 sixty-six years. 



Mr. T. Rupert Jones, F.E.S., formerly 

 professor of geology at Sandhurst, has died 

 at the age of ninety-one years. 



Major George Lamb, director of the Pas- 

 teur Institute of India and known for his 

 important work on snake venoms, the plague 

 and hydrophobia, died at Edinburgh on April 

 11, in his forty-second year. 



Professor Eduard Zacharias, director of 

 the Botanical Institute of Hamburg, has died 

 at the age of fifty-nine years. 



Professor A. Houzeau, professor of chem- 

 istry in the Rouen Scientific School, has died 

 at the age of eighty-two years. 



