INDUSTRIAL PROGRESS DURING THE YEAR 1875. ccxxxv 



gregate production of iron and steel, embracing the different 

 branches of the iron trade : 



Products Net Tons. 



1S72. 



1ST3. 



Pig-iron 



All rolled iron, including rails 



All rolled iron, including nails and^ 



excluding rails ) 



Rails of all kinds 



Bessemer steel rails 



Iron and all other rails 



Street rails 



Kegs of cut nails and spikes 



Merchantable Bessemer steel) 



other than rails ) 



Total Bessemer steel 



Crucible cast steel 



Open-hearth steel 



All other steel 



Blooms from ore and pig-iron 



2,854,558 

 1,941,992 



941,992 



1,000,000 



94,070 



905,930 



15,000 



4,065,322 



16,430 



110,500 



27,260 



3,000 



7,740 



58,000 



2,868,278 

 1,966,445 



1,076,368 



890,077 



129,015 



761,062 



9,430 



4,024,704 



27,985 



157,000 



32,786 



3,500 



13,714 



62,564 



1S74. 



2,689,413 

 1,839,560 



1,110,174 



729,413 



144,944 



584,469 



6,739 



4,912,180 



31,635 



176,579 



34,128 



7,000 



6,353 



61,070 



From the Engineering and Mining Journal, which claims 

 to have devoted especial care to the collection of authentic 

 statistics upon this subject, we give the following statement 

 of the coal production of the United States for the year 1874. 

 The totals are in net tons. During the year 1874 there was 

 produced 



Anthracite 24, 281,471 



Bituminous 25,248,684 



Lignite 1 , 217,020 



Total 50,747,175 



Or 45,209,980 gross tons. 



The great strike in the anthracite region during the past 

 year, and which was finally terminated by the complete sub- 

 mission of the miners to the operators' terms, was one of the 

 most obstinately conducted and disastrous in its results that 

 have ever taken place in the country. 



At the time of writing we have no data at hand upon 

 which to base an estimate of the total coal production of the 

 past year. The same journal estimates the production of 

 anthracite during 1875 to have been 21,441,000 gross tons. 

 The technology of this subject will be found in its appro- 

 priate place. 



The statement of the production of the precious metals in 

 the United States shows that the gold yield is gradually de- 



