rl74: , NEW YORK STATE MUSEUM 



South Dover, Dutchess co. The South Dover marble co. operates 



a large quarry (67) about 2 miles northeast of Wing station. The 



product, all of which is used for structural purposes, is carried 



to the railroad at Wing on an electric trolley road built by the 



company for that purpose. An analysis of the marble made by 



Kicketts and Banks follows: 



Si02 "^ .7 



FesOs .25 



AI2O3 37 



CaO 30.6a 



MgO 20.25 



Na20 12 



K2O 4& 



Dover Plains, Dutchess co. This quarry was not visited by the 



writer, and the following description is therefore quoted from 



Ries.i 



At Dover Plains, Gr. & J. H. Ketcham have operated a quarry 

 along the highroad ^ mile southeast of the town. The rock is a 

 soft, fine grained dolomite of gray or white color. The opening 

 is about 200 feet long, 20. to 30 feet wide and 10 feet deep. No 

 analysis was made of the stone but several samples were ex- 

 amined to determine their insoluble matter, which ran from 2 ta 

 3 per cent. 



Small marble quarries have been operated at several other 

 points in eastern Dutchess county, notably near Pawling and 

 Dover. 



Stoneco, Dutchess co. Large quarries (68) in the blue silicious 

 limstone have been opened on Clinton point, on the east side of 

 the Hudson river, north of New Hamburg. These quarries are 

 operated by the Hudson River stone supply co. All the product 

 is used as road metal, to which use it is particularly well adapted. 

 Samples from these quarries have been tested for binding 

 power, wear, etc., and the results of these tests will be found 

 reported on p. rl4-r22 of this volume. 



Ries gives the following analysis of the limestone from Clinton 

 point. 



SiOo 10-17 



AI2O3 2.33 



Fe203 ^7 



Ries. N. Y. state geol. 17th an. rep't. 1899. 



