800 CK ELE TREE 
GRESLEY, W. S. 
Organic markings in Lake Superior iron ores. (Science, new ser., 
vol., 3, 1896, pp. 622-623.) Summarized Journ. of Geol., vol. 6, 
p. 748. 
GRIMSLEY, G. P. 
The granites of Cecil county, innortheastern Maryland. (Journ. of Cin- 
cinnati Soc. Nat. Hist., April and July, 1894, pp. 50.) Summarized 
Journ. of Geol., vol. 3, p. 236. 
GRISWOLD les: 
The geology of Helena, Montana, and vicinity. Journ. of the Assoc. of 
Engineering Societies, vol. 20, 1898, pp. 1-18.) Summarized Journ. 
of Geol, vol. 7, p.. 706. 
HAGugE, A. 
The age of the igneous rocks of the Yellowstone National Park. (Am. 
Journ. Sci., 4th ser., vol. 1, 1896, pp. 445-457.) Summarized Journ. 
of Geol., voi. 6, p. 847. 
—— with WEED, W.H., and IDDINGs, J. P. 
Yellowstone National Park folio. (Geol. Atlas of U.S., folio no. 30, U. 
S. Geol. Surv., 1896.) Summarized Journ. of Geol., vol. 6, p. 846. 
HALL, C. W. and SARDESON, F. W. 
Paleozoic formations of southeastern Minnesota. (Bull. Geol. Soc. Am., 
vol. 3, 1892, pp. 331-368.) Summarized Journ. of Geol. vol. 1, p. 308. 
HAWES, G. W. 
Notes on the microscopic characters of the Alabama crystalline or 
metamorphic rocks. (Bull. Geol. Surv. of Alabama, no. 5, 1896, pp. 
131-132.) Summarized Journ. of Geol., vol. 6, p. 540. 
HAWORTH, E. 
The crystalline rocks of Missouri. (Missouri Geol. Surv., vol. 8, 1895, 
pp. 84-222. With geol. map.) Summarized Journ. of Geol., vol. 4. 
P- 379. 
Report on the Iron Mountain sheet—the Archean rocks. (Missouri 
Geol. Surv., vol. 9, 1896, pp. 15-27. With sheet no. 3.) Summarized 
Journ. of Geol!,'vol. 6,’ ps (841. 
See Keyes. 
Haves, C. W. 
Cleveland folio. (Geol. Atlas of U.S., folio no. 20, U.S. Geol. Surv., 
1895.) Summarized Journ. of Geol., vol. 6, p. 537. 
Isbomty IRS Ih. 
Notes on a reconnaissance of the Ouachita mountain system in Indian 
Lernitory: (Am: Journ Sei: 3d ser., vol. 42, 1891, pp. 11-124.) 
Summarized Journ. of Geol., vol. 4, p. 370. 
