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CONTENTS 
JANUARY NUMBER 
James Dwight Dana. C. E. Beecher. [Portrait, Plate I.] 1 
Physical Conditions of the Flow of Glaciers. Warren 
Upham. [Plate II.] 16 
Floating Sand : An Unusual Mode of River Transpor- 
tation. F. W. Simonds 29 
Ancient River Deposits of the Spring River Valley in 
Kansas. 0. H. Hershey 37 
The Timepiece of Geology. E. W. Claypole 40 
Editorial Comment. — Shell-bearing Modified Drift in Great Britain, 45. 
Review of Recent Geological Literature. — Niagara Falls and their His- 
tory, G. K. Gilbert, 47. — Undersokningar ofver Zonen nied 
Agnostus lsevigatus, I. D. Wallerius, 49. — Iowa Geological Sur- 
vey, vol. iv, Samuel Calvin, 51. — Fossil Sponges of the Flint 
Nodules in the Lower Cretaceous of Texas, J. A. Merrill, 52. — 
Crystallography, N. Story-Maskelyne, 53. — Einige Beitrage zur 
Kenntniss der bohmischen Kreideforination, J. J. Jahn, 54. — Dic- 
tionary of Altitudes of Missouri, C. F. Marbut, 54. — Om Olandska 
Rankar, J. G. Andersson, 55. — Silurisk Posidonomyaskiffer, J. C. 
Moberg, 55. — New Contributions to the Knowledge of the Swedish 
Halleflintas, Otto Nordenskjold, 56. 
Recent Publications, 56. 
Correspondence. — A Question of Priority, W. B. Scott, 58. 
Personal and Scientific News. — General Notes, 59. — Zittel's Elements of 
Palaeontology. 60. — Underground Temperatures, 60. — New York 
Academy of Sciences, 61. 
FEBRUARY NUMBER 
Notes on the Geology of Eastern California. H. W. Fair- 
banks. [Plate III.] 63 
The Association of the Gasteropod Genus Cyclora with 
Phosphate of Lime Deposits. A. M. Miller 74 
The Buchanan Gravels: An Interglacial Deposit in Buc- 
hanan Co., Iowa. Samuel Calvin. [Plates IV and V.] 7<> 
Lacroix' Axial Goniometer. N. H. Winchell. [Illus- 
trated.] 79 
Phenomena of Falling Meteorites. O. C. Farkin<; ton 82 
Philadelphia Meeting of the Geological Society of Amer- 
ica. Warren Upham . 89 
Editorial Comment.— The James Hall Medals, 109. — The Gold Fever in 
South Africa, 110.— Notice Concerning the Geological Map of 
Europe Published under the Auspices of the International Cod 
gress of Geologists, 112. 
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