150 



NEW YORK STATE MUSEUM 







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Percentage 

 of water 

 absorbed 



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to 



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^ 

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•^OOCO^CO •lOtCOti-^iO^-^-^^-t-iOlOO 



Size of brick. 



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• Ol Ol (M CM CM (^1 Ol <M (M G^ CM G<1 (M G<l Gvl (M (M C<J 











East Williston 



Southold 



Farmingdale 



Croton, W. A. U. . . 



Haverstraw 



Syracuse 



Warners 



Cauandaigua 



Rome 



Rome 



Owasco 



Saratoga 



Buffalo 



Dunkirk 



Jamestown 



Hornellsville 



Newfield (yellow) . . 

 NewfieM (cream) . . . 



