8 NEW YORK STATE MUSEUM 



that by the Northern Ore Co., at Edwards, although there are many 

 showings and prospects in the district which as now defined extends 

 from Edwards to the vicinity of Sylvia lake. 



From the summary of the year's reports rendered by the indi- 

 vidual enterprises it appears that the value of the total production 

 of ores and mineral materials ' amounted to $35,988,407. This 

 represented a slight gain over the corresponding figure for 1914, 

 which was reported as $35,870,004. The increase, however, was 

 more apparent than real for it did not equal the actual increment 

 arising from the entrance of new enterprises in the list of producers. 



The products on which the valuations noted are based number 

 over thirty, and with few exceptions represent the materials as 

 they come from the mines and quarries without elaboration or 

 manufacture, except so much as is necessary to put them in market- 

 able form. They do not include secondary products like iron and 

 steel, sulphuric acid, aluminum, carborundum, calcium carbide, 

 artificial graphite, alkali products, etc., the manufacture of which 

 constitutes a large industry by itself, with an annual output of a 

 much greater value than that returned by the industries covered in 

 this report. 



Among the metallic minerals, iron ore ranks first in importance 

 as regards value of output. The gross amount of ore hoisted from 

 the mines last year was 1,365,064 long tons, which after allowance 

 for shrinkage in concentration — practised by the Adirondack 

 magnetite mines — left 944,403 long tons of shipping product 

 valued at $2,970,526. In the preceding year the amount of ore 

 hoisted was 1,122,221 long tons and the output of furnace ore and 

 concentrates 751,716 long tons valued at $2,356,517. The market 

 for iron ore improved rapidly during the year and there is every 

 prospect of an active demand for the current season. 



The clay-working industries are first in importance in regard to 

 value of the annual production. Last year they returned an aggre- 

 gate output valued at $10,002,373, compared with $9,475,219 in the 

 preceding year. Most of the gain indicated was contributed by the 

 potteries, whereas the manufacture of structural materials in most 

 cases was smaller than in 1914. Another branch that reported a 

 decline was the paving brick industry, which experienced a 

 diminished demand for the material owing to temporary conditions. 



Cement production was on a reduced scale, but this was partly 

 accounted for by the shutdown of one of the larger mills for 

 several months owing to a disastrous landslide. The market was 



