SCIENCE. 



Editorial Combiittee : S. Newcomb, Mathematics ; R. S. WooDWAitn, Mechanics ; E. C. Pickering, As- 

 tronomy ; T. C. MExnEXHALL, Physics ; R. H. Thurstox, Engineering ; Ira Remsen, Chemistry ; 

 Joseph Le Conte, Geology; W. M. Davis, Pliysiography ; O. C. Marsh, Paleontologj", W. K. 

 Brooks, Invertebrate Zoology ; C. Hart Merriam, Vertebrate Zoology ; N. L. Brittox, 

 Botany ; Hexry P. OsBORN, General Biology ; H. P. Bowditch, Physiology ; 

 J. S. BiLLlXGS, Hygiene ; J. McKeen Cattell, Psychology ; 

 Daniel G. Beinton, J. W. Powell, Anthropology. 



Friday, March 1, 1895. 



COXTENTS: 



On Dr. William Toirnseiul Porter's Inrcsligations of 

 the Growth of the School Children of St. Louis : 

 Fr Axz Boas 223 



Ldlioralori/ Teaching of Large Classes in Botany: 

 W. F. Ganoxg . . ." 230 



Magnetism and the WeatJier : H. A. Hazen 234 



Similar Inventions in Areas Wide Apart: O. T. 

 Masox 235 



TO« Social Sense : J. Mark BALD\^^N 236 



American Students at the Saples Zoological Slatioii : 

 H. F. OsBORN 238 



Correspondence .— 239 



Pithecanthropus ereclus : HaRRISOX ALLEX. 

 Tlir Elihu Thompson Prize: M. 



Scientific Literature : — 241 



Merrinm's Reri.iion of the Pocket Gophers: ,J. A. 

 Allex. Grcgon/'s'Th( T'IoikI Earth: T. C. M. 

 The Wood's Ifnli P.iuhHjical Lectures: CHARLES 

 S. DoLLEV. Williams' Aero-Therapeutics. Phys- 

 ic.f : William Hallock. Geology : J. D. R. 



Notes and News : — 249 



The A. A. A. S. Table at Wood's Holt Lahornlory ; 

 General . 



Soe>ciie.s and Academics : — 250 



Michigan Academy of Scimcc : The Academy of 

 Natural Si-iciicis of Pliilmhlphia : Geological So- 

 ciety of Waxhinglon : Fortnightly Scienlijic Club 

 in the Unirersily of Minnesota. 



Scientific Journals 251 



Neio Books 252 



MSS. intended for publication and books, etc., intended 

 for review sliould be sent to tlie responsible editor, Prof. J. 

 McKeen C'nttell, Garrison on Hudson, N. Y. 



Subscriptions ( five dollars annually ) and advertisements 

 Bbould be sent to t^ie I'ublisher of Science, 41 East 49th St., 

 New York, or Lancaster, Pa. 



ON DR. WILLIAM TOWNSEND PORTER'S IN- 

 VESTIGATION OF THE GROWTH OF THE 



SCHOOL CHILDREN OF ST. LOUIS.* 

 Dr. Porter's investigations on the growth 



of the school children of St. Louis claim 



particular attention, as the author opens a 

 number of new problems and proposes new 

 methods of inquiry. His conclusions are 

 far-reaching and have a close relation to 

 the method of treatment of a number of 

 questions. It is the importance of these in- 

 vestigations, which are based on very exten- 

 sive material, which induces me to subject 

 the author's methods to an examination. 



Dr. Porter's scheme of measurements is 

 based largely upon that used by Dr. H. P. 

 Bowditch in his investigations in Boston, 

 and on the one which I used in the collec- 

 tion of data in Worcester, Mass. To these 

 the measurements of girth of chest and 

 of strength of grasp are added. It must 

 be regretted that Dr. Porter determined the 

 age of the child at its nearest birthdaj', 



*1. The Physical Basis of Precocity and Dullness. 

 (Transactions of the Academy of Science of St. Louis, 

 Vol. VI., No. 7, March 23, 1^<93. ) 



2. Tlie Relation between the Growth of CliiUlren 

 and their Deviation from the Physical Tyjie of their 

 Sex and Age. (Ibid., Vol. VI., Xo. 10, November 

 14, 1893. ) 



3. Untersuchungcn der Schulkinder in Beztig auf 

 die physischen Grundlagen ihrcr geistigen Entwick- 

 lung. ( Verb. d. Berliner Gcsellschaft fiir anthropolo- 

 gic, 1893, pp. 337-354. ) 



4. Tlie Growth of St. Louis Children. (Transac- 

 tions of the Academy of .Science of St. Louis, Vol. 

 VI., No. 12, April 14, 1894, pp. 263-380 ; repnbli.sheil 

 in Quarterly Publications of the American Statisti- 

 cal Association, N. s., No. 24, Vol. III., December, 

 1893, pp. 577-587. ) 



5. The Growth of St. Louis Children. (Urid., Nos. 

 25, 26, Vol. IV., March-June, 1894, pp. 28-34.) 



