126 ANNUAL RECORD OF SCIENCE AND INDUSTRY. 



six hundred pages, with a number of accompanying maps and 

 sections. The volume contains, besides a report of progress 

 of the survey for 1870, a sketch of the structure of the lower 

 coal measures in Northwestern Ohio by Professor Newberry; 

 the report of labors in the second geological district by Pro- 

 fessor E. B. Andrews, and on the geology of Highland County 

 by Professor Orton ; the report of the Agricultural Survey 

 of the State by Mr. J. H. Klippart ; a report of the chemical 

 department by Professor Wormley ; sketches of the geology 

 of several counties by Messrs. M. C. Read and E. Gilbert ; a 

 sketch of the present state of the iron manufacture in Great 

 Britain by W. W. Potter ; and a sketch of the present state 

 of the steel industry by Henry Newton. 



All of these subjects are treated with great care, and the 

 whole volume bears ample testimony to the ability of the 

 chief geologist and the industry of his assistants. This vol- 

 ume is intended as simply preliminary to the final report, 

 which Professor Newberry hopes to have embodied in four 

 volumes two of them devoted to the geology and paleon- 

 tology, one to the economical geology, and one to agricul- 

 ture, botany, and zoology. The materials for these volumes 

 are in an advanced stage of forwardness, and will embrace 

 monographic treatises on the several subjects, which will be 

 of the utmost benefit in ascertaining and developing the re- 

 sources of the state. Report. 



REPORT OF PROFESSOR HAYDEN's EXPLORATIONS. 



The report of Professor Hayden of his geological explora- 

 tions in Montana and the adjacent Territories during the 

 past season has just been published at the office of the Con- 

 gressional printer, the promptness with which the manu- 

 script was furnished by the authors of the several papers and 

 printed by the public printer being deserving of much com- 

 mendation. The book itself is an octavo of five hundred 

 pages, with geological sections, maps, diagrams, and two 

 plates of new species of orthopterous insects. 



Our readers will remember the interesting discoveries made 

 by Professor Hayden in the geyser region of the Yellowstone 

 Lake and Fire Hole River, resulting in the passage of a law 

 by Congress setting apart a tract of land nearly sixty miles 

 square as a public park forever for the benefit of the people 

 of the United States. 



