BCHMECKEBIER.] ANN0AI/ KEPOKTS. 16 



Supplement to the Fifth Annual Report of the United States Geo- 

 logical Survey of the Territories for 1871. F. V. Hayden, United 

 States geologist in charge. Report on fossil flora. By L30 Lesque- 

 reux. Conducted under authority of the Secretary of the Interior. 

 Washington: Government Printing Ofiice. 1872. 



8°. 22 pp. 

 An enumeration with descriptions of some Tertiary fossil plants, from speci- 

 mens procured in the explorations of Dr. F. V. Hayden, in 1870, by Leo 

 Lesquereux, pp. 5-22. 



1872. 



Sixth Annual Report of the United States Geological Survey of the 

 Territories, embracing portions of Montana, Idaho, Wyoming, and 

 Utah, being a report of progress of the explorations for the year 1872. 

 By F. V. Hayden, United States geologist. Conducted under the 

 authority of the Secretary of the Interior. Washington: Government 

 Printing Office. 1873. 



8° xi, 844 pp., 12 pis., 5 maps, 4 leaves containing figs. 10, 14, 15, 34. 

 Letter to the Secretary, 1-10 pp. 

 4 Part I. 11-313 pp., 5 maps, 4 leaves containing figs. 10, 14, 15. 34. 



Eeport of F. V. Hayden [on explorations in Yellowstone Valley and adja- 

 cent region], pp. 11-85, 3 maps, 3 leaves containing figs. 10, 14, 15. 

 Report of N. P. Langford on the resources of Snake River Valley, pp. 86-91. 

 Means of access to the Yellowstone National Park by railroad, by R. Hering, 



pp. 92-95. 

 Report of A. C. Peale, M. D., [on explorations in Colorado, Utah, and Wyo- 

 ming], pp. 97-187, ] leaf containing fig. 34. 

 Report of Frank H. Bradley, geologist of the Snake River division, pp. 



189-271, 2 maps. 

 Physical geography and agricultural resources of Minnesota, Dakota, and 

 , Nebraska, by Gyrus Thomas, Ph. D., pp. 273-313. 



/ Part II. Special reports on geology and paleontology, pp. 315-658, pis. 1-12. 

 Lignitic formation and fossil flora, by Leo Lesquereux, pp. 817-427. 

 Preliminary paleontological report, consisting of lists and descriptions of 

 fossils, with remarks on the ages of the rocks in which they were found, 

 etc., by F. B. Meek, paleontologist, pp. 429-518. 

 Report of a geological reconnaissance along the Union Pacific Railroad, by 



H. M. Bannister, M. D., pp. 519-541. 

 On the extinct vertebrata of the Eocene of Wyoming, observed by the expe- 

 dition of 1872, with notes on the geology, by Edward D. Cope, A. M., pp. 

 't 543-649, pis. 1-6. 



^ On remains of primitive art in the Bridger Basin of southern Wyoming, by 

 '' Professor Joseph Leidy, pp. 651-654, pis. 7-12. 



"^ Ancient mounds of Dakota, by C. Thomas, Ph. D., pp. 655-658. 

 Part III. Special reports on zoology and botany, pp. 659-792. 



Report on the mammals and birds of the expedition, by 0. H. Merriam, pp. 



661-715. 

 Ooleoptera, by George H. Horn, M. D., Philadelphia, p. 717. 

 Notes on Orthoptera, by Cyrus Thomas, Ph. D., pp. 719-725. 

 Odonata from the Yellowstone, by Dr. H. Hagen, pp. 727-729. 



