VI CONTENTS 



Page 



Romance or science?, by Paul R. Heyl 283 



Origin of folded mountains, by W. F. Prouty 293 



Meteorite craters as topographical features on the earth's surface, by Dr. 



L. J. Spencer, F.R.S 307 



A geologist's paradise, by R. S. Bassler 327 



Nature's own seaplanes, by Carl L. Hubbs 333 



The microscopic plant and animal world in ultraviolet light, by Florence E. 



Meier 349 



The history of an insect's stomach, by R. E. Snodgrass 363 



Ticks and the role they play in the transmission of diseases, by F. C. 



Bishopp 389 



The forehead, by Ales Hrdlicka ^-- 407 



The historical significance of Tepe Gawra, by E. S. Speiser 415 



Indian manuscripts of southern Mexico, by Herbert J. Spinden 429 



Archeology of the Bering Sea region, by Henry B. Collins, Jr 453 



