Eleventh Year. 

 Vol. XXI. No. 525. 



FEBRUARY 24, 1893. 



Single Copies, Ten Cents. 

 3.50 Per Year, in Advance. 



Contents. 



The Absence of Aik fbom the Moon. Robert 



t^^ZBall •,;•■■•,■ 



Some Erkobs in Thermometer Readings. JiVank 



Waldo 



To Anthropolosists. 



Goldsmiths Institute Engineering. Society 



Frederick Bramwell — 



On the Growth of the Rattle of Crotalid.^. 



S. Garinan 



CuRKE.NT Notes on Anthropology.— XXIII. D. 



a. Bnnton, Editor 



The Alphabets of the Berbers. D. G. Brin- 



ton. 



104 



Letters to the Editor. 



The Trinomial Question in Nomenclature. 



C. H. Tyler Townsend ... . . 105 



Notes on the Fauna of the Dry Regions. A. 



W. Anthony. 105 



Bad-Air Indicator. C. H. Ames 106 



On Chelydra serpentina. S. Gorman 106 



Snow Rollers. D. f. Kellogg. .. 107 



The Antiquity of Man. Henry W. Haynes. . 107 

 Birds in Serere Cold Weather. E.E.Whitney 107 

 Miocene Group of Alabama. L. C. Johnson. 107 



Mule-footed Hogs. Jno. H. Frick. 107 



Book Reviews. 



A Manual of Bacteriology 107 



Discussion of the Precision of Measurements 108 

 Seventh Annual Report of the State Board 



of Health of the State of Maine, 1891 109 



The Mound Builders, Their Works and Relics 109 

 Some Strange Corners of our Country: The 



Wonderland of the Southwest 109 



First Steps in Etruscan 109 



The Etrusco-Libyan Elements in the Song of 



the Arval Brethren 109 



Theory of Structures and of Strength of 



Materials.. 110 



Among the Publishers Ill 



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

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THE AMERICAN RACE. 



By DANIEL G. BRINTON, M.D. 



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FOSSIL RESINS. 



This book is the result of an attempt to 

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NEO-DARWINISM ANi. REO-LAMARCKISM. 



By LESTE.i F. 'WARD. 

 Annual address of the President of the Biological 

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