E. MINERALOGY AND GEOLOGY. 127 



The present report contains full details of the country, the 

 location of the principal geysers and hot springs, and a plan 

 of the reservation in question. As appendices to the report, 

 we have a paper on the agricultural resources of the regions 

 traversed by Professor Thomas, and letters by Mr. R. S. El- 

 liott, well known for his labors in reference to tree-planting 

 on the prairies, and other subjects. A division of the volume 

 is devoted to the paleontology of the survey, and embraces 

 papers on the fossil flora by Professor Lesquereaux ; on the 

 fossil vertebrates of the cretaceous strata of Kansas, and of 

 the Wahsatch group, by Professor Cope ; on the vertebrates 

 of the tertiary formation of Wyoming by Professor Leidy ; 

 and on the invertebrate fossils by Professor Meek. Lists of 

 recent insects, reptiles, fishes, plants, etc., are also included, 

 as also a communication on meteorology by Mr. Beaman, one 

 of the assistants of the survey. Many new species, both re- 

 cent and fossil, are described in the report, and it is under- 

 stood that fuller details will hereafter appear, properly illus- 

 trated, in the final report, which is now in the course of prep- 

 aration. 



REPORT OF MB. CLARENCE KING VOL. V. 



Among the many works published by the United States 

 government, or at its expense, there are few that exceed in 

 intrinsic value, as well as in beauty, the volumes hitherto 

 printed belonging to the series of reports made by Mr. Clar- 

 ence King, of his geological and other explorations of the re- 

 gion along the fortieth parallel of latitude. This expedition 

 is still occupied in carrying out the work assigned to it by 

 the Engineer Department of the army, while reports are now 

 being made of such portions of the work as have been com- 

 pleted. 



It is nearly a year since the volume upon the mining indus- 

 try of the Sierra* Nevada and other mineral regions of the 

 West was published, as prepared mainly by Mr. J. D. Hague 

 (one of Mr. King's assistants), but including articles by Mr. 

 King himself, and other members of the corps. This was ac- 

 companied by a large atlas of plates, and contained full de- 

 tails of all the methods of metallurgical operations and man- 

 ipulations, together with drawings of machinery, plans of 

 mines, sketches of mining geology, etc. This book has been 



