FRAGMENTS OF SC1FNCE. 



by Ellen H. Richards; Examination of 

 Water (Chemical and Biological), by 

 William P. Mason; and the fifth edition 

 of H. Van F. Furman's Manual of 

 Practical Assaying. 



In a method of sterilization of water 

 by means of ozone, described by Dr. 

 Weyl, of Berlin, at the German Scien- 

 tific Conference, 1899, water is pumped 

 to the top of a tower and allowed to 

 flow freely over stones, meeting as it 

 falls a current of air charged with 

 ozone. The process appears to be like- 

 wise effectual in purifying peat and bog 

 water, the solution of the iron salts of 

 humic acid being decomposed and oxi- 

 dized, and the brown color disappearing 

 in consequence. The method, it is said, 

 can be advantageously used in connec- 

 tion with filter beds. 



Our death list this month of men 

 known in science is large. It in- 

 cludes the names of M. Philippe Sal- 

 mon, archaeologist, subdirector of l'Ecole 

 d'Anthropologie of Paris, President 

 of the Ministry of Public- Instruc- 

 tion's Commission on Megalithic Monu- 

 ments and author of numerous mono- 

 graphs on subjects of his studies, in 

 Paris, aged seventy-six years; Dr. 

 C. T. R. Luther, director of the Observa- 

 tory at Bilk, near Dusseldorf, aged sev- 

 enty-eight years. He discovered twen- 

 ty-one of the minor planets and calcu- 

 lated the orbits of them all, as well as 

 those of several other bodies; Dr. C. 

 Piazzi Smith, formerly Astronomer 

 Royal of Scotland, author of studies of 

 the amount of heat given by the moon 

 to the earth, and of some famous specu- 

 lations upon the construction and pur- 



poses of the Great Pyramid as an ex- 

 ponent of the standard of measure- 

 ment, February 21st, aged eighty-one 

 years; M. Fmiile Blanchard, dean of the 

 section of Anatomy and Physiology of 

 the French Academy of Sciences; Cap- 

 tain Bernadieres, member of the French 

 Bureau des Longitudes and Director of 

 the Observatory School of Montsouri for 

 Officers of the Marine, who had fulfilled 

 several astronomical and geodesic com- 

 missions ; Dr. Hermann Schaeffer, hon- 

 orary professor of Mathematics and 

 Physics at Jena, aged seventy-six 

 years; Leander J. McCormick, founder 

 of the McCormick Observatory at the 

 University of Virginia; President 

 James H. Smart, of Purdue University, 

 Lafayette, Ind.; General A. A. Tillo, 

 Vice-President of the Russian Geo- 

 graphical Society, founder of an exact 

 physical geography of Russia, based on 

 scientific data, and of many contribu- 

 tions on the science, at St. Petersburg, 

 January 11th, aged sixty years; Prof. 

 E. Beltrami, of the University of Rome 

 (Mathematical Physics), President of 

 the Accademia dei Lincei, and corre- 

 spondent of the Paris Academy of Sci- 

 ences; M. Emmanuel Liais, Mayor of 

 Cherbourg, France, also distinguished 

 for useful and very meritorious work in 

 Astronomy and Physics, aged seventy- 

 four years; Dr. Hans Bruno, Professor 

 of Mineralogy and Geology in the Uni- 

 versity of Dresden, Saxony, distin- 

 guished for his investigations of the 

 Paleozoic, Cretaceous, and Permian 

 rocks of Saxony, at Dresden, January 

 28th, aged eighty-five years; and Wil- 

 liam Thorpe, one of the Vice-Presidents 

 of the Society of Chemical Industry. 



PUBLICATIONS EECEIVED. 



Agricultural Experiment Stations. 

 Bulletins and Reports. Indiana (Pur- 

 due University). Twelfth Annual Re- 

 port. Pp. 150. — Michigan. Monthly 

 Bulletin of Vital Statistics, January, 

 1900. Pp. 18.— New Jersey: Bulletin 

 No. 141. Forcing Tomatoes. By Alva 

 T. Jordan. Pp. 18; No. 142. Pea- 

 Growing in New Jersey. By Alva T. 

 Jordan. Pp. 14. — New York: No. 162 

 (popular edition). Injury by Sun 

 Scorching of Foliage. By F. H. Hale 

 and F. C. Stewart. Pp. 6; No. 163 

 (popular edition). Canker, an Enemy 



of the Apple. By F. H. Hall and Wen- 

 dell Paddock. Pp. 6; No. 164 (popular 

 edition). Divers Diseases discussed. By 

 F. H. Hall. Pp. 5; No. 165. Report of 

 Analyses of Paris Green and other In- 

 secticides. By L. L. Van Slyke. Pp. 10. 

 —Ohio: No. 10. The Maintenance of 

 Fertility. By C. E. Thorne. Pp. 91 — 

 United States Department of Agricul- 

 ture Comparative Range Grass and For- 

 age Plant Experiments at Highmore, 

 South Dakota. By F. Lampson Scrib- 

 ner. Pp. 10. — List of Publications for 

 Sale by the Superintendent of Docu- 



