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Geology of eastern Berkshire county, Mass. U. S. G. S., Bull. 
159, pp. 135, 9 plates. Washington, 1899. 
Farrington, O. C 
New mineral occurrences. Field Col. Mus., Geol. Ser., i, No. 7, 
Feb. 1900. 
Farrington, O. C. 
Crvstal forms of calcite from Joplin, Missouri. (Field Col. Mus., 
Ser. I, No. 7. Feb. 1900. 
Fontaine, W. M. 
Notes on lower Cretaceous plants from the Hay Creek coal field. 
Crook county. Wyoming. (19th Ann. Rep., U. S. G. S., Part II, pp. 
645-712, pis. liii-clxxii, 1900.) 
Ford, W. E. (S. L. Penfield and) 
Siliceous calcites from the bad lands, Washington county, South 
Dakota. (Am. jour. Sci.. vol. 9, pp. .352-354- May, 1900.) 
Gannett, Henry. 
A dictionary of altitudes in the United States. U. S. G. S., Bull. 
160, pp. 775. Washington, 1899. 
Gilpin, E. 
The minerals of Nova Scotia, pp. 18. Halifax, 1900. 
Girty, Geo. H. 
Preliminary report on paleozoic invertebrate fossils from the region 
of the McAlester coal field, Indian territory. (19th Ann. Rep.. U. S. 
G. S., Part III, pp. 539-593, pis. Ixx-lxxii, 1900.) 
Grant, U. S. 
Preliminary report on the Copper-bearing rocks of Douglas coun- 
ty, Wisconsin. (Wis. Geol. & Nat. Hist. Sur., Bull. 6, pp. 55. Geol. 
maps and plates. Madison, 1900.) 
Hall, C. W. 
The gneisses, gabbro-schists and associated rocks of southwestern 
Minnesota. U. S. G. S., Bull. 157, pp. 131, 27 plates. Washington, 
1899- 
Hay, O. P. 
Descriptions of some vertebrates of the Carboniferous age. (Proc. 
Am. Phil. Soc, vol. 39, pp. 96-123. Mar. 1900.) 
Hayes, C. W. 
Physiography of the Chattanooga district in Tennessee. Georgia 
and Alabama. '(19th Ann. Rep., U. S. G. S.. pp. 1-58, plates i-v. 
1899.) 
Hayes, C. W. (and A. H. Brooks). 
Ice clififs on White river, Yukon Territory. (Nat. Geog. Mag., 
vol. II, pp. 199-202, May, 1900.) 
Heilprin. Angelo. 
The Nicaragua canal, in its geographical and geological relations. 
(Bull. Geog. Soc. Phil., vol 2, pp. 87-197. March, 1900.) 
