54 BIBLIOGRAPHY OF NORTH AMERICAN GEOLOGY, [bull. 271. 
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Gilbert (Grove Karl). 
1. Alaska. Glaciers and glaciation. 
Harriman Alaska Expedition, vol. 3, 231 pp., 27 pis., 11 figs., 1904. 
Describes the occurrence and characters of the glaciers and physiographic fea- 
tures of Alaska. 
2. Geology and paleontology [of the Harriman Alaska expedition]. 
Introduction. 
Harriman Alaska Expedition, vol. 4, pp. 1-8, 1 pi., 1904. 
Describes briefly the itinerary of the Harriman Alaska expedition and the gen- 
eral results obtained. 
3. Regulation of nomenclature in the work of the U. 8. Geological 
Survey. 
Am. Geol., vol. 33, pp. 138-142, 1904. 
Notes some of the changes made in the regulations given in the Tenth Annual 
Report of the U. S. Geological Survey. The revised regulations appear in 
the Twenty-fourth Annual Report of the II. S. Geological Survey. 
4. The mechanism of the Mont Pelee spine. 
Science, new ser., vol 19, pp. 927-928, 1904; Eng. & Mg. Jour., vol. 78, p. 27, 
1904. 
Offers an explanation of the formation of the spine of Mont Pelc. 
5. Domes and dome structure of the high Sierra. 
Geol. Soc. Am., Bull., vol. L5, pp. 29-36, 4 pis., 1904. 
Describes dome structure and discusses its origin. 
6. Variations of Sierra glaciers. 
Sierra Club Bull., vol. 5, no. 1, pp. 20-25, 2 pis., 1904. 
7. S}^stematic asymmetry of crest lines in the high Sierra of California, i j 
Jour. Geol., vol. 12, pp. 579-588, 8 figs., 1904. 
Discusses the relations of glaciers and physiographic features in the Sierra 
Nevada Mountains. 
8. Origin of Basin ranges. 
Abstract: Geol. Soc. Am., Bull., vol. 14, p. 551, 1904. 
See no. 448 of U. S. Geol. Surv., Bull. no. 240. 
Gillette (Halbers Powers). 
1. Osmosis as a factor in ore formation. 
Am. Inst. Mg. Engrs., Trans., vol. 34, pp. 710-714, 1904. 
See no. 710 of the Bibliography for 1903, U. S. Geol. Surv., Bull. no. 240. 
Girty (George H.). 
1. New molluscan genera from the Carboniferous. &c 
l\ S. Nat. Mus., Proc, vol. 27, pp. 721-736, 3 pis., 1904. 
2. Mote on the Carboniferous fossils [of the Bisbee Quadrangle, Ari- 
zona]. 
U. S. Geol. Surv., Professional Paper no. 21, pp. 46-54, 2 pis., 1904. 
Gives lists of identified fossils with notes upon their occurrence and relations. 
Some of the more characteristic are figured. 
3. The typical species and generic characters of Aviculipecten, McCoy. 
Am. Geol., vol. 33, pp. 291-296, 1 fig., 1904. 
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