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CONTENTS. 
Page. 
The Sectional Feature in American Politics, by Humphrey J. Des¬ 
mond . 1 
Artificial Keys to the Genera and Species of Mosses Recognized in 
Lesquereux and James’s Manual of the Mosses of North America, 
by Charles R. Barnes.„. 11 
Some Additional Evidences Bearing on the Interval Between the 
Glacial Epochs, by T. C. Chamberlin. 82 
On the Appendages of the First Abdominal Segment of Embryo In¬ 
sects (with Plates I-III), by Wm, M. Wheeler. 87 
Some New Theories of the Greek Id-Perfect, by Chas. E. Bennett.. Ill 
On Some Metamorphosed Eruptives in the Crystalline Rocks of 
Maryland (with Plate IV), by Wm. H. Hobbs. 156 
Notes and a Query Concerning the Ericaceae, by Chas. H. Chandler. 161 
Artificial Keys to the Genera and Species of Mosses Recognized in 
Lesquereux and James’s Manual of the Mosses of North America 
— Additions and Corrections, by Charles R. Barnes... 163 
The Science of the English Language in the Light of the Gothic, by 
G. H. Balg. 167 
Aristotle’s Physics (Physike Akroensis) Reviewed by John J. Elmen- 
dorf. 169 
The Defective Classes, by A. O. Wright... 176 
Notes on a Little Known Region of Northwestern Montana (with 
Plate V), by G. E. Culver. 187 
On a New Occurrence of Olivine Diabase in Minnehaha County, 
South Dakota, by G. E. Culver and Wm. H. Hobbs. 206 
On the Deep Water Crustacea of Green Lake, by C. Dwight Marsh.. 211 
Notes on the Depth and Temperature of Green Lake (with Plate VI), 
by C. Dwight Marsh. 214 
Origin of the Iron Ores of the Lake Superior Region (with Plate 
VII), by C. R. Van Hise. 219 
The Present Condition of the Latitude Problem, by G. C. Comstock. 229 
On the Correllation of Moraines with Raised Beaches of Lake Erie 
(with Plate VIII), by Frank Leverett. 233 
The Cuneiform Inscriptions on the Monuments of the Achgemenides 
(with Plates IX and X) Translated by H. C. Tolman. 241 
The Effect of Changes of Temperature on the Distribution of Mag¬ 
netism (with Plate XI), by H. B. Loomis. 273 
