388 The American Geologist. J'-^e, i904. 
GERTY, GEO. H. 
The typical species and generic characters of Aviculipecten, Mc- 
Coy. (Am. GeoL, vol. 33, p. 291, May, 1904.) 
GLENN, L. C. 
Devonian and Carboniferous rocks of southwestern New Tork. 
(Bull. G. S. A., vol. 14, pp. 522-531, 1903.) 
GORDON, C. H. 
The work of rivers. (N. W. Jour. Ed., vol. 15, 1904.) 
GRABAU, A. W. 
Geoloary of Becraft mountain. (Bull. G. S. A., vol. 14, p. 532, ab- 
stract.) 
GREENE, G. K. 
Contribution to Indiana Paleontology, Part 17, pp. 1C8-175, pis. 
49-51, -May 0, 1904, New Albany, Ind. 
GREGER, D. K. 
On ihe ganus Rhyxchopora, King, with notice of a new species. 
(Am. Geol., vol. 33, p. 297, May, 1904.) 
GULLIVER, F. P. 
Nanlucket shorelines. (Bull. G. S. A., vol. 14, p. 555, abstract, 
1903.) 
HAEHL, H. L. (and RALPH ARNOLD). 
The Miocene diabase of the Santa Cruz mountains in San Mate(/ 
county, California. (Proc. Am. Phil. Soc, vol. 43, p. 15, Mar., 1904.) 
HAY, O. P. 
An important but not well known locality furnishing Cretaceous 
fishes. (Bull. G. S. A., vol. 14, p. 542, abstract, 1903.) 
HAYES, C. W. (S. F. EMMONS and) 
Contributions to economic geology. Bull. 225. U. S. Geol. Sur., 
pp. 527, 1904. 
HAZARD, D. L. 
Magnetic dip and intensity observations, Jan., 1897, to June 30, 
1902. (Appendix No. 6, Report for 1902 of the Coast and Geodetic 
Survey, Washington.) 
HEILPRIN, ANGELO. 
The nature of the Pelee tower. (Science, vol. 19, p. 800. May 20; 
1904.) 
HERRICK, 0. L. 
Laws of formation of New Mexico mountain ranges. (Am. Geol., 
vol. 33, pp. 301-312, May, 1904.) 
HOLMES, J. A. 
Science at the World's Fair, St. Louis. (Bull. G. S. A., vol. 14. p. 
560, abstract, 1903.) 
IDDINGS, J. P. 
Chemical composition of igneous rocks expressed by means of 
diagrams. (Bull. G. S. A., vol. 14, p. 633, abstract.) 
