SC.'llMKCKKlUKlt. 



ANNUAL KEl'OKTS. 15 



On the ,ij;c'o<i;rai)hical (liHtrittutiini <il' the iiidlhs nf ( oldiadu, by A. S. rnckanl, 



jr., M. I)., i>i). 54:5-560. 

 K('l)ort on the Piptera collected by Lieut. W. L. ('arpenler in ('uldiadn dar- 

 ing the summer of 1873, by ('. K. Osten Sacken, ])p. 5»)l-5r)(). 

 Notice on the galls collected by Lieut. W. L. Carju'iiter, by ( '. Jl. Osten 



Sacken, p. 5(57. 

 List of species of Coleoptcra, collected by Lieut. W. L. Carpenter, United 



States Army, for thelTnited States geological survey of Colorado, bS7P), ])p. 



567-571. 

 Report on the rseudo-Neuroptera and Neuroptera collected by Lieut. W. L. 



Carpenter in 1873 in Colorado, by Dr. H. A. Hagen, pp. 571-606. 

 Report on the myrioixids collected by Lieut. W. ]j. Carpenter, in 1873, in 



Colorado, l)y A. S. I'ackard, jr., M. D., p. 607. 

 Report on the amphipod Crustaceans, l)y S. I. Smith, pp. 608-611, pis. i-ii. 

 Description of a lerna^an Crustacean (Achthernes carpenteri) obtained l)y 



Lieut. W. L. Carpenter, in 1873, in Colorado, T)y A. S. Packard, jr., M. D., 



p. 612. 

 Synopsis of tlie fresh-water phylloiwd Crustacea of North America, by A. S. 



Packard, jr., j\L D., pp. 613-622, pis. i-iv. 

 List of leeches collected by Hayden's expedition, 1873, by A. E. Yerrill, 



p. 623. 

 List of terrestrial mollusks collected by Lieut. AV. L. Carpenter, T". S. A., 



for the United States geological survey of Colorado, 1873, l)y William G. 



Binney, p. 623. 

 Part IV. Geography and topography, pp. 625-681, 3 maps. 



Sketch of the methods of survey in the geographical department, 1 )y James T. 



Gardner, geographer, pp. 627-628, 1 map. 

 The elevations of certain datum-points on the Great Lakes and rivers and 



in the Rocky Mountains, by James T. Gardner, geographer, pp. 629-659, 



1 map. 

 Topographical report of Middle Park division, 1873, by S. B. Ladd, M. E., 



pp. 661-669. 

 Geographical report of Henry Gannett, M. E., [on central Colorado], pp. 



670-681, 1 map. 

 Appendix, pp. 683-691, 1 map. 



Gold Hill mining region, its jiosition and general geology, by Arcli. R. Mar- 

 vine, pp. 685-687, 1 map. 

 The telluride ores of the Red Cloud and Cold Sj)ring mines, Gold Hill, by 



B. Silliman, pp. 689-691. 

 Index, pp. 693-718. 



IsT-i. 



[Eighth] Annual Report of the United States Geological and Geo- 

 graphical Survey of the Territories, embracing Colorado and parts of 

 adjacent Territories; being a report of progress of the exploration 

 for the year 1874. By F. V. Hay den, United States geologist. Con- 

 ducted under the authority of the Secretary of the Interior. Wash- 

 ington: Government Printing Office. 1876. 



8°. ix, 515 pp. 82 leaves containing illustrations, 8 leaves containing plate 

 descriptions. 



J^etter to the Secretary, })p. 1-17. 



