Vol. LXXVI. No. 6. JUNE, 1910 



THE 



POPULAR SCIENCE 

 MONTHLY 



EDITED BY J. McKEEK CATTELL 



CONTENTS 



Scientific Work of the Department of Agriculture. De. W J McGee 521 



Instinct and Intelligence in Birds. Professor Fbancis H. Herbick . 532 



Two Preventable Causes of Insanity. Dr. Thomas W. Salmon . . . 557 



The Indian Fairy Book. Spencer Trotter 565 



Scenery Soil and Atmosphere. Professor Albert Perry Brigham . . 570 



The Paleontologic Record: 581 



ThePaleontological Society Conference Papers, Professor John M.Claeke. Adequacy 

 of the Paleontologic Record, Professor Samuel Calvin, R. S. Basseleb. Inter- 

 dependence of Stratigraphy and Paleontology, De. W. J. Sinclair. Biologic 

 Principles of Paleography, Professor Chables Schtjcheet, De. F. H. Knowlton 



The Case of Harvard College. Professor J. McKeen Cattell .... 604 



The Progress of Science : 615 



The Salaries of University Professors ; Sir William Hoggins ; Lord Kelvin ; Scien- 

 tific Items. 



Index to Volume LXXVI 621 



THE SCIENCE PRESS 



Lancaster, pa. gabbison, n. y. 



NEW YORK: Sub-Station 84 



Single Ntjmbeb, 30 Cents i Yearly Subscription, $3.00 



■amm ——*——«■■— ■■■ „ ■■, i i n ■ ii i — -i ,. ■,. . !! .i . ■ r i ■■■.■■ ii !■■ IP— i n I ,— ■——a— m i i ^ 



Copyright, 1909, by THE SCIENCE PBESS 



