N 17 1920 



SCIENCE 



NEW SERIES Friday, January 1 4. 1921 f^"-^ ^f™- '^ ^'- ^„„ 



Vol. Lni, No. 1359 ' Annual Subscription, $6.00 



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A Laboratory Manual! Anthropometry 



43 Illustrations. 8vo. Cloth, $3.00 Postpaid. 



By HARRIS H. WILDER, Ph.D., Professor of Zoology, Smith College, North- 

 ampton, Mass. 



It gives the necessary rules for measurements; an enumeration of instru- 

 ments as employed in various places, together with a much simplified account 

 of the most generally used mathematical methods for tabulating and express- 

 ing results of measurements. Bibliography of the subject is indicated. Appen- 

 dices of actual measurements of skulls and bodily proportions are given as 

 samples of the work outlined and for comparison with the results obtained by 

 t)he practical reader. 



BARR AND MALONEY 



Types of Mental Defectives 



31 Plates, Containing 188 Illustrations. 8vo. Cloth, $3.00 Postpaid. 



By MARTIN W. BARR, M.D., Chief Physician, Penna. Training School for 

 Feeble-Minded Children; and E. F. MALONEY, A.B., Professor of 

 English, Girard College, Philadelphia. 



The information most eagerly sought by those entering upon the Work 

 among feeble-minded is, naturally, how to easily recognize the various forms 

 of mental defect in order that they may define and promptly meet the special 

 needs of those with w'hom they are brought in daily contact. This book points 

 the way to successful diagnosis of defect, moral, mental, physical. 



P. BLAKISTON'S SON & CO. 



PUBLISHERS PHILADELPHIA 



