INDUSTRIAL STATISTICS. 413 



will correspond very closely to the figures of 1876, and that 

 they will show no change in quantities and values worthy 

 of special mention. 



COAL TRADE OF 1877. 



The Engineering and Mining Journal estimates the pro- 

 duction of anthracite in 1877 to have been about twenty-one 

 million tons, or about two million tons more than in 1870. 

 The production of bituminous and post-carboniferous coals is 

 estimated by the same authority to have amounted to more 

 than twenty-eight million tons, gross making an aggregate 

 coal production for the United States of nearly fifty millions 

 of gross tons, or, say fifty and three quarter million metric 

 (net) tons. The estimated production of anthracite by re- 



gions is given as follows: 



Gross Tons. 



Wyoming region 8,300,000 



Lehigh " 4,400,000 



rri 



Gross Tons. 



Schuylkill region 8,G00,000 



Loyalsock " 23,000 



Total 21,323,000 



The exports of coal for the fiscal year ending June 30, 1877, 

 were 418,791 tons anthracite and 321,665 tons bituminous. 



PRODUCTION OF PRECIOUS METALS IX 1877. 



Although somewhat too early for the presentation of pre- 

 cise figures of production of the precious metals for the past 

 year, we are in possession of official statements from two 

 sources which certainly approximate very closely to accu- 

 racy. The estimate of Wells, Fargo, and Co. of the produc- 

 tion of the precious metals in the states and territories west 

 of the Missouri River, including British Columbia and the 

 west coast of Mexico, during 1877, shows an aggregate yield 

 of 898,500,000 an increase of 87,500,000 over that of 1876. 

 The Engineering and Mining Journal gives a more detailed 

 estimate, which corresponds very closely with the foregoing, 

 viz. : 



Arizona $1 ,500,000 | Nevada $50,000,000 



California 20,000,000 New Mexico 500,000 



Colorado 7,500,000 ; Oregon and Washington 1 ,000,000 



Dakota 1,500,000 Utah 4,500,000 



Idaho 3,500,000 Wyoming 250,000 



Montana , 5,000,000 Total $95,250,000 



