E. MINERALOGY AND GEOLOGY. 203 



made by Professor Cox or his assistants, are given in the 

 volume, followed by a preliminary examination of other por- 

 tions of the state. Mr. Charles Boerner furnishes a paper on 

 the meteorology of Switzerland County, Indiana, in which the 

 peculiar features of its climatology are well expressed in a 

 series of tables. The volume concludes by a paper upon the 

 manufacture of specular iron, prepared by Mr. Hugh Hart- 

 mann, with special reference to the introduction of new and 

 improved processes in working up the ores of the state. 



EEPORT FOR 1872 OX THE GEOLOGY OF NEW JERSEY. 



Professor Cook, State Geologist of New Jersey, has just 

 presented his annual report for the year 1872, which contains 

 an account of the progress of the work done during the past 

 year, and refers to the labors of Professor John C. Smock in 

 the iron-ore region, of Mr. Bogardus in analyzing soils, etc., 

 and of Professor Bowser in surveying several iron mines. 

 Professor Cook himself has been chiefly occupied in furnish- 

 ing information as to various new products of the state. He 

 lias also been engaged in determining questions connected 

 with certain drainage projects, which had been under the 

 charge of the Geological Survey. 



Among other points brought forward by Professor Cook 

 is a suggestion as to a new survey of the boundary between 

 'New Jersey and New York, the original monuments having 

 in great part got out 6f place or been removed, and conse-" 

 quently much uncertainty is now existing as to the precise 

 line of partition between the two states. 



The discovery of a valuable mine of mica in Warren County 

 is recorded, from which plates of the mineral over a foot in 

 diameter can be readily obtained. 



FOURTH ANNUAL REPORT OF MINING STATISTICS FOR 1872. 



The Fourth Annual Report, for 1872, of Professor R. W. 

 Raymond, United States Commissioner of Mining Statistics, 

 has just been published by Congress, in a volume of about 

 560 pages. This contains the usual valuable summary of the 

 condition of the mining industry in the states and territories 

 of the far West, and an account of improved metallurgical 

 processes in the way of lead ores, the amalgamation of gold 

 and silver ores, the treatment of native silver ores in Chihua- 



