January 17, 1902.] 



SCIENCE. 



103 



several months ago, and Part II., it is an- 

 nounced, 'will be published on April 15, 1902.' 

 The work is edited by 'J. Stanley Gardiner, 

 M.A., fellow of Gonville and Caius College 

 and BaKour student of the University of 

 Cambridge.' The part issued contains, besides 

 the introduction, excellent reports on the 

 physiography of the archipelagoes iu question 

 and on the Hymenoptera, Land Crustaceans 

 and Nemerteans. The work wiU be more fully 

 noticed when completed. 



SCIENTIFIC JOURNALS AND ARTICLES. 



The Journal of Comparative Neurology for 

 December. 1. Shinkishi Hatai, ' On the 

 Mitosis in the Nerve Cells of the Cerebellar 

 Cortex of Fcetal Cats,' shows: (1) The germ- 

 inal cells of the nervous system of the fcetal 

 cat present a modified form of the hetero- 

 typical mitosis of Flemming, (2) the number 

 of the chromosomes represented by internodes 

 of segmental filaments is 16, (3) all of the 

 ' Halospindel ' and a part of the central spindle 

 are derived from the nucleolar substance, the 

 central spindle containing the linin in great 

 abundance. 2. Alice Hamilton, M.D., ' The 

 Division of Differentiated Cells in the Central 

 Nervous system of the White Eat.' The num- 

 ber and position of the dividing cells in later 

 developmental stages (at and near birth) are 

 described and compared with the results of 

 other workers. Regarding the nature of the 

 dividing cells, the author concludes : (1) There 

 are at least two kinds of dividing cells in the 

 central nervous system of the white rat, one 

 small the other large, (2) neuroglia cells are de- 

 rived from the small cells, nerve cells from the 

 large ones, (3) dividing cells found in the gray 

 matter and fiber tracts of the brain and cord 

 are not indifferent cells, but are partly differ- 

 entiated and it is possible to tell which are to 

 become neuroglia cells and which nerve cells, 

 (4) mitotic figures are occasionally found in 

 multipolar nerve cells and in spongioblasts. 

 3. C. H. Turner, 'The Mushroom Bodies of 

 the Crayfish and their Histological Environ- 

 ment.' A description of the supra-oesophageal 

 ganglion of the crayfish, in the course of which 

 it is shown that the mushroom bodies and the 

 central bodies of the brains of crayfish and in- 



sects are homologous structures and that both 

 of these organs are also present in worms. 

 The first article is illustrated by one plate, 

 the second by two, and the third by four. 



Plans have been made for a new engineer- 

 ing quarterly, which is to be known as the 

 Harvard Engineering Journal. The first 

 number, which will appear on March 1, will 

 consist largely of a description of Pierce Hall, 

 the new enginering building, and of the en- 

 gineering department. 



The two journals devoted to geographical 

 education that have hitherto existed in this 

 country have been merged, and will appear, 

 beginning with January, as the Journal of 

 Geography, devoted to the advancement of 

 geographical education. The new journal will 

 be edited by Eichard E. Dodge, professor of 

 geography, Teachers College, Columbia IJni- 

 versity, and hitherto editor of the Journal 

 of School Geography; Edward M. Lehnerts, 

 professor of geography. State Normal School, 

 Winona, Minn., and formerly editor of the 

 Bulletin of the American Bureau of Geog- 

 rapliy, and Dr. J. Paul Goode, instructor in 

 geography. University of Pennsylvania, Phil- 

 adelphia, Pa. The Journal of Geography will 

 appear ten times a year, with 480 pages to the 

 volume. It will be 7 x 10 inches in size, and 

 extensively illustrated. The editors will be 

 aided by a large irumber of associate editors, 

 representing different phases of geography. 

 The journal will be published by the J. L. 

 Hammett Co., Boston and New York, and wiU 

 be printed at Lancaster, Pa. 



SOCIETIES AND ACADEMIES. 

 AMERICAN MATHEMATICAL SOCIETY. 



The eighth annual meeting of the American 

 Mathematical Society was held at Columbia 

 University on Friday and Saturday, December 

 27-28, 1901. A single day's sessions no longer 

 suffice for the extensive programs of the 

 Society's more prominent meetings. In pro- 

 viding for a two-day meeting it was hoped to 

 gain ample time for the presentation of 

 papers, but the long program completely 

 filled the four sessions. Fifty-nine members 

 were in attendance, a number exceeding all 



