26 



SCIENCE. 



[Vol. XVIII. No. 440 



— The seventh volume of " Chambers's Encyclopagdia," which 

 has just appeared, ranges from Maltebrun to Pearson. Geo- 

 graphical articles are the most prominent feature of the volume, 

 there being descriptions of no less than seventeen of the American 

 States and Territories, together with articles on Mexico, New 

 Zealand, several of the Canadian provinces, and the cities of Paris, 

 New York, Moscow, and many others. The articles on the dif- 

 ferent parts of the United States are by American writers, and a 

 few other articles are also from American pens. Besides the 

 geographical papers mentioned, there are various other articles of 

 interest to men of science. Prof essor P. G. Taittreatsof "Matter," 

 Dr. J. P. Steele of "Medicine," and Dr. John Murray describes 

 the Pacific Ocean and the Mediterranean Sea. The Eev. E. B. 

 Kirk treats of the moon and of meteors. Professor James Geikie 

 of mountains and of paleontology. Dr. Buchan of meteorology, 

 etc. Literature and history are less fully represented ; but there 

 are papers on novels, newspapers, mythology, etc., and sketches of 

 Mills, Milton, Napoleon, and many less noted men. Among the 

 most important papers in the volume are those on Mohammed and 

 the religion he founded, written by Professor Emmanuel Deutsch and 

 Rev. John Milne ; while the longest of all the articles, we believe, 

 is on the subject of the navy. Other noticeable papers treat of 

 painting, music, parliament, numismatics, and, in short, of all 

 important topics in this part of the alphabetical list. The volume 

 is characterized by the same qualities that we have noted in the 

 earlier ones, clearness and conciseness combining to convey a 



large amount of information in available form and in moderate 

 space. Published in this country by J. B. Lippincott Co., Phila- 

 delphia. 



— While engaged in explorations on behalf of the Geological 

 Sui-vey of Canada in 1889 and 1890, Mr. J. B. Tyrrell discovered 

 an area of Silurian rocks on the north-east side of Lake Winnipe- 

 gosis, on Cedar Lake, and on the Saskatchewan River below Cedar 

 Lake. From these rocks an interesting series of fossils was ob- 

 tained, some of which are apparently new to science. Of these 

 latter, four of the most characteristic or important species are de- 

 scribed and illustrated in a pamphlet just issued by J. F. Whit- 

 eaves, entitled " Descriptions of Four New Species of Fossils from 

 the Silurian Rocks of the South-eastern Portion of the District of 

 Saskatchewan." 



— In the August Popular Science Monthly, Hon. Carroll D. 

 Wright discusses the value of statistics, explaining how tables of 

 figures should be used, and showing how they are sometimes made 

 to give false evidence ; Dr. Andrew D. White, in his article en- 

 titled "From Fetich to Hygiene," presents a terrible picture of 

 the ravages of epidemics in times when prayers and processions 

 were the only means relied upon to check them ; Mr. S. N. D. 

 North concludes "The Evolution of the Woolen Manufacture," 

 with dyeing and finishing processes, and some general featm-es of 

 the industry (fully illustrated). The same number contains the 

 first of a series of illustrated articles on " Dress and Adornment," 



d at Editor'! 

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Perkins, P. C. Cornell University and her General 

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