Publications of the United States Government. 65 



Report of 1877. Geological report on the portions of western 

 Nevada and eastern California between the parallels 30 

 deg. 30 min. and 38 deg. 30 min. ; by A. R. Conlding. 

 Report of Chief of Engineers, 1877, Appendix H, pp. 

 1285-1295. 



The area examined is bounded on the north by a line drawn 

 through Truckee, Cal., and Washoe City, Nev. ; on the east by the 

 Mount Davidson range and the Como Mountains ; on the south by 

 Job's Peak and Pyramid Peak ; and on the west by the Western 

 summit and the Truckee River. Nearly all this region is covered 

 by granites, with occasional outbursts of basaltic rocks. No fossils 

 were found, except at Carson City, at the State Prison quarries. 



U. S. GEOLOGICAL SURVEY OF THE 40th PARALLEL. 



CLARENCE KING, Director. 



Microscopical petrography, U. S. geological exploration of 

 the 40th parallel, Clarence King, geologist in charge. Vol. 

 6, by Ferdinand Zirkel. 297 pp., 12 pi. Washington,. 

 1876. 



U. S. GEOLOGICAL AND GEOGRAPHICAL SURVEY 

 OF THE TERRITORIES. 



F. V. HAYDEN, U. S. Geologist, in charge. 



Twelfth Annual Report of the U. S. Geological and Geograph- 

 ical Survey of the Territories. A report of progress of 

 the exploration in Wyoming and Idaho for the year 1878. 

 In two parts. Part I. Washington, 1883. 



On page 132, Dr. White describes Productus giganteus, Martin^ 

 from McCloud River, Shasta County, California. 



Contributions to the fossil flora of the western Territories, vol. 

 8, Part III. The Cretaceous and Tertiary flora; by Leo 

 Lesquereux. xii, 283 pp., 59 pi. Washington, 1883. 



Equisetuvi species ; Sequoia angustifolia, Lx. ; Taxites oriki, 

 Heer ; Geonomiles ScMmperi, Lx. ; Alnus corrallina, Lx. ; Quercus 

 olafseni, Heer ; Castanca Ungeri, Heer ; Salix varians, Goepp ; S. 

 integraf, Goepp ; Populus balsamoides, Goepp ; Platanus dissecta, 

 Lx. ; Ficus asiminae folia, Lx. ; Laurus princeps, Heer ; L. grandis, 

 Lx. ; L. salicifolia, Lx. ; L. Californica, n.sp. ; Cinnamonum affine, 

 Lx. ; Myrtus Oregonensis, Lx. ; Quercus convexa, Lx. ; Ulmus Cali- 

 fornica, Lx. ; Aralia acerofolia, Lx. ; Aralia zaddachif, Heer; Cer- 

 ocarpus antiquum, Lx. 



