SCIENCE. 



[Vol. XVII. No. 433 



CALENDAR OP SOCIETIES. 



Anthropological Society, Washington. 



May 5.— J. W. Powell, The Evolution of 

 Industries; Thomas Wilson, The Interna- 

 tional Congress of Criminal Anthropology of 

 Paris, 1889. 



Biological Society, Washington. 



May 16.— C. V. Eiley, The Mexican "Ar- 

 row Weed" and "Jumping Bean"; J. M. 

 Holzinger, Incentives to Natural History 

 Work; William Palmer, The Distribution of 

 Certain Mammals, Birds, and Plants on the 

 Pribyloff Islands; George Vasey, Notes on 

 Recent Field Work of the Botanical Divi- 

 sion of the Department of Agriculture ; F. 

 A. Lucas, On a Tortoise from Duncan Isl- 

 and. 



New York Academy of Sciences. 



May 25. — Charles Lane Poor, The history 

 of Lexell's comet from 1770 to 1890, illus- 

 trating the action of Jupiter and Saturn in 

 drawing comets into the Solar System. 

 Boston Society of Natural History. 



May 20.— W. O. Crosby, Geology of Hing- 

 ham; G. H. Barton, Glacial Pot-hole at 

 Pearl Hill, Fitchburg, Mass. 



AN DER SEE. Eeisebriefe aus dem Moore 

 und von der Nordsee. Von Dr. Ernst 

 Doges. (1884.) 178 p. 13°. 25c. 



DIE KOLONIALREICHE UND KO- 

 LONISATIONSOBJEKTE DER GE- 

 GENWART. Kolonialpolitische und 

 kolonialgeographische Skizzen von Dr. 

 Emil Deckert. Leipzig, 1885. 240 p. 12". 

 25c. 



REISEERINNERUNGEN AUS AL- 

 GERIEN UND TUNIS. Von Dr. W. 

 Kobelt. Frankfurt am Main, 1885. Illus- 

 trated. 480 p. 8°. 75c. 



TRANSMISSION ELECTRIQUE DU 

 TRAVAIL MECANIQUE. Determiua- 

 tion des Elements de la Transmission. Par 

 A. Hillairet. Paris, 1884. Illustrated. 

 79 p. 8°. 25c. 



ptE BEZIEHUNGEN ZWISCHEN 

 GEISTESSTORUNG UND VER- 

 BRECHEN. Nach Beobachtungen in der 

 trrenanstalt Dalldorf von Dr. W. Sander 

 und Dr. A. Eichter. Berlin, 1886. 404 p. 

 8°. 75c, 



BLATTER FUR GEFANGNISS- 

 KUNDE. Organ des Vereins der deuts- 

 chen Strafanstaltsbeamten. Eedigirt von 

 Gustav Ekert. Neunzehnter Band, 1 u. 2 

 Heft. Heidelberg, 1884. 151 p. 8". 25c. 



KRITISCHE UND EXPERIMEN- 

 TELLE BEITRAGE ZUR LEHRE 

 VON DER FUTTERUNGSTUBER- 

 CULOSE. Von Dr. F. Wesener. Frei- 

 burg, 1885. 98 p. 8°. 35c. 



GEDENKTAGE DER PSYCHIATRIE 

 ALLER LANDER. Von Dr. Heinrich 

 Laehr. Berlin, 1885. 65 p. 8". 50c. 



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