8o BULLETIN OF THE NEW YORK STATE MUSEUM 



from the plaster and all lie in the town of Manlius. I be- 

 lieve Mr Edwards said he quarried 300 tons this year from 

 9 ft. and 5 ft. beds. 



Mr Severance states that he believes the plaster business 

 of the section will improve because he believes the wall 

 plaster people will eventually use the material near at hand 

 and thus save heavy expense although the material may be 

 less pure and darker colored than the material now used. 

 As to the cost of obtaining the rock he stated he could 

 quarry for 15 cents per ton when the stripping was off. 

 From that figure the cost might vary to 25 cents per ton 

 and occasionally as high as 50 or 60 cents per ton. The 

 cost of carting to the canal is given as 20 cents per ton. 



At Hobokenville 2 miles south of Wampsville on the N. 

 Y. C. Mr Irving Tuttle does a small business in land plaster. 

 He has a quarry on his own farm which however he does 

 not work. His gypsum is obtained from the quarry of John 

 Stisser and is dug by Mr Tuttle. B. F. Winchell also has a 

 quarry from which he digs stone himself and sells to Tuttle. 

 The total product which Tuttle grinds is about 200 tons per 

 year. The plaster is of fair quality and is sold for local use. 



Mr Cyrus Werlock of Perryville owns a quarry about 1 

 mile from Cottons on the E., C. & N. R. R. His quarry is 

 quite large and the gypsum of fair quality. 



R. D. Buttons near Cottons has a quarry of plaster from 

 which he gets perhaps 800 tons yearly. 



The following brief synopsis of the qualities, etc. of the 

 rock operated by F. M. Severance is submitted. This quarry 

 as stated is on one of the largest, certainly the thickest, and 

 one of the most persistent of the plaster beds in New York 

 state. 



The gypsum is in some places 60 ft. thick and is divided 

 into eight well marked layers varying in thickness from 

 eighteen inches to thirty feet. The deposit is covered with 

 some 30 or 40 ft. of shaly rock and limestone. The amount 

 of gypsum (CaSo4) is greatest in the crystalline layers and 



