36 NEW YORK STATE MUSEUM 



It is only within the last 25 years that statistics of the annual 

 production have been recorded. The table below embraces all 

 data that could be collected from published sources. The figures 

 for the years previous to 1904 have been taken principally from 

 the annual reviews by John Birkinbine, contained in the Mineral 

 Resources, while those for 1904 and subsequent years have been 

 compiled at the State Museum. 



YEAR LONG TONS 



l8 79 420 341 



1880. 531 000 



1881. 637 000 



1882 675 000 



1883 500 004 



1884 504 894 



1885 379 077 



1886 .' 583 752 



1887. 768 852 



1888 789 419 



1889 779 900 



1890 821 994 



i9 OL 3 2 9 467 



1902 45 1 57° 



i9°3 45 1 481 



1904 559 575 



1905 739 736 



1906 713 692 



[ The period of maximum development in the Adirondack mines 

 may be said to have extended from about i860 to 1890. In the 

 10 years following the latter date for which no figures are available 

 the output was comparatively small due to the depressed state of 

 the iron markets and the expansion of the Lake Superior districts 

 which were able to sell ore at a lower figure than was possible with 

 the Adirondack mines. Since 1900 there has been a noticeable 

 improvement in the conditions; the output for the past two years 

 has been nearly as large as at any time previous and it will prob- 

 ably show an increase for the next few years, provided there is no 

 marked falling off in the demand for iron ores. 



