Authors' Catalogue. 63 
Description of mines, mining methods, and mining machinery; chemi- 
cal and physical properties of Kansas coals; output and commerce; 
mining directory; and mining laws. (University Geol. Survey of Kan- 
sas, vol. 3, pp. 107-336, pis. 31-70. 1898.) 
Gushing, H. P. 
Report on the boundary between the PotSdam and pre-Cambrian 
rocks north of the Adirondacks. (i6th Ann. Rept. State Geol. of New 
York, 2"] pp., I map, 1898.) 
Dall, W. H. 
Contributions to the Tertiary fauna of Florida, with special refer- 
ence to the Silex beds of Tampa and the Pliocene beds of the Caloosa- 
hatchie river, including in many cases a complete revision of the gen- 
eric groups treated of and their American Tertiary species. Pt. 4. 
Prionodesmacea and Teleodesmacea. (Wagner Free Inst. Sci., Trans., 
vol. 3, pt. 4, pp. i-viii and 571-947, pis. 23-35, Apr. 1898.) 
Darton, N. H. 
Discovery of marme Cretaceous in boring at Norfolk, Virginia. 
[Abstract.] (Bull. Geol. Soc. Am., vol. 9, pp. 414-416. Dec. i, 1898.) 
Dawson, J. W. 
Note on Lepidophloios cliftonensis. (Bull. Geol. Soc. Am., vol. 9, 
p. 416, Dec. I, 1898.) 
Dilier, J. S. 
The educational series of rock specimens collected and distributed 
by the United States Geological Survey. (U. S. Geol. Survey, Bull. 
150, 400 pp., 47 pis.. i8g8.) 
Eakle, A. S. 
A biotite-tinguaite dike from Manchester by the Sea, Essex county. 
Alass. (Am. Jour. Sci,, ser. 4, vol. 6, pp. 489-492, Dec. 1898.) 
Eakle, A. S. 
Topaz crystals in the mineral collection of the U. S. National Mu- 
seum. (U. S. Nat. Museum, Proc, vol. 21, pp. 361-369 [no. 1148], 
1898. 
Gannett, Henry. 
A gazetteer of Kansas. (U. S. Geol. Survev, Bull. 154, 246 pp.. 
6 pis.. 1898.) 
Gannett, Henry, and Mathews, E. B. 
Report on the cartography of Maryland. (Maryland Geol. Survey, 
vol. 2, pp. 243-488, pis. 33-48, 1898.) 
Geikie, James. 
Earth sculpture or the origin of land forms, (xiii and 397 pp., 
2 pis.; The Science Series, G. P. Putnam's Sons, New York, 1898.) 
Gratacap, L. P. 
Relation of James Hall to American Geology. (Am. Nat., vol. ^,2. 
pp. 891-902, portrait, Dec. 1898.) 
Grinnell, G. B. 
Northern Rocky mountain glaciers. (Science, new ser., vol. 8, pp. 
711-712, Nov. 18, 1898.) 
