Authors' Catalogue. 203 
Kiimmell, H. B. 
The Newark rocks of New Jersey and New York. (Jour. Geol., 
vol. 7, pp. 23-52, Jan.-Feb. 1899.) 
Kuntze, Otto. 
On the occurrence of quenstedtite near Montpelier, Iowa. (Am 
Gcol., vol. 23, pp. 119-121, Feb. 1899.) 
Lane, A. C. 
Note on a method of stream capture. (Bull. Geol. Soc. Am., vol. 
ID, pp. 12-15, Jan. 28. 1899.) 
Lane, A. C- 
Magmatic differentiation in rocks ot the copper-bearing series. 
[Abstract.] (Bull. Geol. Soc. Am., vol. 10, pp. 15-18, Jan. 28, 1899.) 
Leith,C. K. 
Summaries of current North American pre-Cambrian literature. 
(Jour. Geol., vol. 6, pp. 840-854, Nov. -Dec. 1898.) 
Leonard, A. G. (Bain, H. F., and) 
Middle Coal Pleasures of the western interior coal fields. [Abstract.] 
(Rull. Geol. Soc. .\m., vol. 10, pp. 10-12. Jan. 28, 1899.) 
Leverett, Frank. 
The lower rapids of the ^Mississippi river. (Jour. Geol.. vol. 7, pp. 
1-22, Jan.-Feb. 1899.) 
Logan, W. N. 
-V discussion and correlation of certain subdivisions of the Colorado 
formation. (Jour. Geol., vol. 7, pp. 83-91, Jan.-Feb. 1^99.) 
Luquer, L. McI. 
Minerals in rock sections. The practical methods of identifying 
minerals in rock sections with the microscope, especially arranged 
for students in technical and scientific schools. (vii and 117 pj) 
D. Van Nostrand Co., New York, 1898.) 
Merritt, F. J. H. 
.\ guide to the study of the geological collections of the New 
York State Museum. (Bull. N. Y. State Museum, vol. 4, no. 19, pp. 
105-262, pis. 1-118, I map, Nov. 1898.) 
Osborn, H. F. 
A C'implete skeleton of Teleoceras fossiger. Notes upon the growth 
and sexual characters of this species. - (Bull. Xm. ^lus. Nat. Hist., 
vol. 10, pp. 51-59, pis. 4-4A, 1898.) 
Osborn, H. F. 
A complete skeleton of Coryphodon radians. Notes upui; the lo- 
comotion of this animal. (Bull. Am. Mus. Nat. Hist., vol. 10, pp. 81- 
91, pi, 10, 1898.) 
Osborn, H, F. 
Remounted skeleton of Phenacodus primaevus. Comparison with 
Euprotogonia. (Bull. Am. Mus. Nat. Hist., vol. 10, pp. 159-164, pi. 
12, 1808.) 
