CONTENTS. 
JANUARY NUMBER. 
Tntroductory i 
A short history of the origin and acts of the International 
Congress of Geologists, and of the American com- 
mittee delegates to it. [i]. Persifor Frazer,. . .. 3 
The Animike hlack slates and quartzytes, and the Ogishke 
conglomerate of Minnesota, the equivalent of the 
"Original Huronian." N. H, Winciiell, 1 1 
The unconformities of the Animike in Minnesota. [Illus- 
trated.] A. WiNCHELL, I^ 
A new species and new genus of tubicolar Annelida. S. 
Calvin, 2^ 
. Notes on the formations passed through in boring the 
A deep well at Washington, Iowa. S. Calvin, 28 
^ The future of natural gas. E. W. Claypole, 31 
■^ Editorial CommetiL— Geology in the educational struggle for existence, 
-J 36. — Irving and Chamberlin on the lake Superior sandstones, 44. 
o Reviexv of recent literature. — Geological Survey of New York; vol. vi; 
(^ paleontology, 58. — Monticuliporoid corals of the Cincinnati group, 
U. P. and Jos. F. James, 59. — Spiral bivalve shell from the Waverly 
of Pennsylvania, C. E. Beecher, 60. — Morphology of the summit 
.; plates in blastoids, crinoids, and cystids, Wachsmuth and Springer, 
^ 61. — Morphology of the carinai upon the septa of rugose corals 
5 Mary E. Holmes, 61. — Primordial fossils from the N. W. territory 
^ of Canada, C. Rominger, 61. — Untersuch, u. Gest. u Min. aus W. 
■» Indien, J. W. Kloo-s, 61. — Preliminary report on petroleum and in- 
5 flammable gas, E. Orton, 62.^The lake-age in Ohio, E. W. Clay- 
pole, 63. — The West American Scientist, 64.— Bulletin No. 39, U. S. 
^»j Geol, Survey, Warren Upham, 64. — Preliminary reports on the 
^ S. E. Kentucky coal fields, Crandall and Hodge, 65. — Annual 
report on the geological survey of Arkansas, John C. Branner, 65. 
a— — The American Magazine; natural gas at Findlay, Z. L. White, 65 
CXL Personal and Scientific Ncxvs^ 66 
•^ FEBRUARY NUMBER. 
«t)The Niobrara river considered with reference to its cap- 
^ acity for irrigation. L. E. Hicks 69 
c The flora of the Coast islands of California in relation to 
^ recent changes of physical geography. Joseph L. 
^ Conte 76 
rr Ac> /f o 
