8 NEW YORK STATE MUSEUM 



increase in the output of limestone for the last two years is about 

 balanced by declines in sandstone, trap, granite and marble. Among 

 the miscellaneous materials that enter into the statistics of production 

 for the last two years, with their respective values, are the following : 

 For 1917, natural cement $41,395; crude clay $51,505; emery 

 $170,223; feldspar and quartz $65,638; garnet $193,440; millstones 

 $22,103; metallic paint $37,282; mineral waters $562,874; molding 

 sand $808,550; other kinds of sand, including gravel, $2,237,897; 

 sand-lime brick $130,626; slate $55,207; and apatite, diatomaceous 

 earth, marl, peat, and gasoline from gas wells, of which the aggregate 

 value is estimated at $100,000. For 19 18, natural cement $7625; 

 crude clay $41,541; emery $61,660; feldspar and quartz $73,230; 

 garnet $232,661; millstones $25,488; metallic paint $10,228; mineral 

 waters $566,910; molding sand $770,512; other kinds of sand, 

 including gravel $1,405,960; sand-lime brick $79,515; slate $11,383; 

 and apatite, diatomaceous earth, marl, potash, unclassified stone, 

 gasoline recovered from natural gas, and minerals used for gem 

 purposes $237,861. 



