CONTENTS. 
LEADING ARTICLES: 
Srnci fs some Cases of Apparent Transmission of Mutilations. Dr, O. von 
Certain pe Heaps of the M ass s River, Florida, hitherto unexplored (II- 
ustrated i CGB M 
i jonesii; A sreaions supposed to be new, feoi Cold Spring Har- 
r, Long Island (Illustrated). HENRY L. Osporn and C, W, HAR 
Grrr. 
Courtship among the Flies, J. M. ALDRICH...... 
Some Recent Chemico-Physiological Discoveries Regarding the Cell, P. H. 
CRITTENDEN 
The Classification of the Arthropoda. J. S. KINGSLEY 118 
The Range of the Crossbills in T pag g aA with Notes on their Unusual 
Occurrence in T 
The Energy of Evolut E 3 COPE 
On a Small Collection pe Vertebrate Fossils from the Loup Fork Beds of 
Northwestern Nebraska, with Note on the Geology of the Region (Il- 
lustrated). J. B. HATCHE ER 
Whence Came the Cultivated Strawberry? L., H. BAILE 
The Parasitic Protozoa Found in Cancerous Diseases PARR ALICE 
BoDINGTON 
The Anen. of AEA toward Foreign Substances (Illustrated). E. J. 
The Waki Tussock-Moth yet betes sivas daa Smith and ae in 
Notes on a Species of ep a ( state) F. L. HARVEY 
The Meaning of Tree- HL 
Unusual Flights of the Ae E (Tes as lateralis Say) in AOS 
ern Illinois "aem J. L. HANCOCK 
A Glacial Ice Dam a Limit to the Ice Sheet in Central Ohio (Illustrated). 
W.G T 
IGHT. 
Animal Mechanics. Dr, M. Miles 
The Origin of Pelagic Life (From ProF. W. E. BROOKS)........ ...2.-.-0s00000+ 
The Origin of the Vertebrate Skeleton, J. S. KINGSLEY 
Variation of Etheostoma caprodes ga get W. J. MOENKHAUS.... 
ckism and Neo-Darwinism, L. H. B 
roians Pollination (Iustrated). J. L. Hancock 
