SCIENC 



A WEEKLY NEWSPAPER OF ALL THE ARTS AND SCIENCES. 



PUBLISHED BY N. D. C. HODGES, 874 BROADWAY, NEW YOEK. 



Tente Year. 

 Vol. XIX. No. 483. 



MAY 6, 1892. 



Single Copies, Ten Cents. 

 $3.50 Per Year, in Advance. 



Contents. 



Preliminary Note on the Eelations of 



THE Motor Muscles of the Eyes 



TO Certain Facial Expressions. 



George T. Stevens 358 



The Architectural Exhibition in 



Brooklyn. Barr Ferree S54 



Current Notes on Anthropology. — V. 



Edited by D. G. Brinton 355 



The Growth of Children. Franz 



Boas 356 



An Instrument for Mopping Hot and 



Cold Spots on the Skin. E. W. 



Scripture 358 



Some Uses of Bacteria. H. W. Conn.. 358 

 Letters to the Editor. 



The Color Question. 0. Staniland 



Wake 364 



Family Types. J. C. Dana 364 



Among the Publishers 365 



Entered at the Post-Offlce of New York, N.Y., as 

 Second-Class Mail Matter. 



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Games, Ancient and Oriental, and How 

 to Play them : Being the Games of the 

 Ancient Egyptians, the Hiera Gramme of 

 the Greeks, the Ludus Latrunculoruoi of 

 the Romans, and the Oriental Games of 

 Chess, Draughts, Backgammon, and Magic 

 Squares. By Edward Falkener. With 

 colored Plates, Photographs, and numer- 

 ous Diagrams, etc. Demy 8vo, pp. 440, 36. 



Phases of Animal Life, Past and Present. 

 By R. Lydekker, B.A. With 83 Illustra- 

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Elements of Materia Medica and Thera- 

 peutics. Including the whole of the Rem- 

 edies of the British Pharmacopoeia and its 

 Appendix of 1890. By C. E. Armand 

 Semplb, B.A., M.B., Cantab., M.R.C.P., 

 Lond. ; Secretary to the Court of Exam- 

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The First Crossing of Greenland. By Dr. 

 Fridtjof Nansen. New and cheaper Edi. 

 tion, abridged. With numerous Illustrations 

 and a Map. In one vol., crown 8vo, $3.50. 



[ASTRONOMICAL WORKS. 



The Milk/ Way. From the North Pole to 

 10° of / jj^^-Oeclination. Drawn at the 

 Earl of b.J'^s^^ ' -ervatory at Birr Castle. 

 By Otto Bct,.'^^ With Descriptive 



Letterpress. 4:L.*0/f^ ' -e 18 in. by 33 in., 

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LONGMANS, GREEN & CO., 15 East i6th St., N. Y. 



THE 



Popular Science Monthly 



FOR MAY 



Herbert Spencer and the Synthetic Philosophy. By W. H. Hudson. An account of 

 • the manner in which Spencer's philosophic thought unfolded, with a statement of the real 

 relation between the work of Darwin and that of Spencer. 



Notes upon Anthropological Work in Europe. (Illustrated.) By Frederick Starr. 

 Tells what museums and other facilities for the study of anthropology exist abroad. Con- 

 tains twelve portraits of leading European anthropologists. 



Cave-Dwellings of Men. (Illustrated.) By W. H. Larrabee. Describes both ancient cave 

 dwellings and caves now inhabited in several parts of Europe. 



Evolution in Folk-Lore. By David Dwight Wells. Shows the alterations produced in a 

 negro legend by changes in the life and surroundings of the people that preserved it. 



OTHER ARTICLES ON 



Limitations of the Healing Art ; Dendrites (illustrated) ; Bad Air and Bad Health, 

 II.; Why we should teach Geology; A Desert Fruit; Energy as a Factor in Agricul- 

 ture; Relations of Natural Science to Art, II.; Sketch of Volta (with Portrait). 



50 cents a number; $3.00 a year. 



D. APPLETON & CO., 



NEW YORK. 



