322 The American Geologist. ^''^^'- ^^"'3- 
HOPKINS, T. C. 
Lower Carboniferous area in Indiana. (Bull. G. S. A., vol. 13, 
p. 519 [abstract], February, 1903.) 
HOVEY, E. O. 
Paleontological collections of the geological department of the 
American Museum of Natural History. (Bull. G. S. A., vol. 13, p. 
532 [abstract], Feb., 1903.) 
KEMP, J. F. 
Memoir of Theo. G. White. (Bull. G. S. A., vol. 13, pp. 516-517, 
Feb., 1903.) 
KEYES, C. R. 
Devonian Interval in Missouri. (Bull. G. S. A., vol. 13, pp. 267- 
293, Aug., 1902.) 
KNIGHT, W. C. 
Coal fields of southern Uinta county, Wyoming. (Bull. G. S. A., 
vol. 13, pp. 542-544 [abstract], Feb., 1903.) 
LANE, A. C. 
Variation of geothermal gradient in Michigan. (Bull. G. S. A., 
vol. 13, p. 528 [abstract], Feb., 1903.) 
LAWSON, A. C. 
Geological section of the middle Coast ranges of California. 
(Bull. G. S. A., vol. 13, p. 544 [abstract], Feb., 1903.) 
LEE, WILLIS T. 
The canyons of northeastern New Mexico. (Jour. Geog., vol. 2, 
pp. 63-82, Feb., 1903.) 
MARTIN, G. C. (W. B. CLARK and). 
Correlation of the Coal Measures of Maryland. (Bull. G. S. A., 
vol. 13, pp. 215-232, July, 1902.) 
MERRILL, F. G. H. 
Metamorphic crystalline rocks [of the New YoY'k City district]. 
(U. S. G. S., Geol. Atlas, Folio 83, 1902.) 
PRESSEY, H. A. 
Water supply of New York City. (U. S. G. S., Geol. Atlas, Folio 
83, 1902.) 
REID, H. F. 
Notes on mounts Hood and Adams, and their glaciers. (Bull. 
G. S. A., vol. 13, p. 536 [abstract], Feb., 1903. 
RIGGS, E. S. 
Brachiosaurus altithorax, the largest known dinosaur. (Ani. 
Jour. Sci., vol. 15, April., 1903, pp. 299-306.) 
RUEDEMANN, R. 
Professor Jaekel's theses on the mode of existence of Orthoceras 
and other cephalopods, with annotations by J. M. Clarke. (Am. 
Geol., vol. 31, April., 1903, pp. 199-217.) 
