248 BULLETIN OF THE NEW YORK STATE MUSEUM 



At Brownsville some limestone is got at the side of the 

 Cape Vincent branch railroad for local use. 



Chaumont, Jefferson County. — There are several large 

 quarries at Chaumont, two of which, Adams Bros.' and Du 

 Fort & Son, are run steadily. The former has a quarry 

 face a mile in length. They are in the horizon of the Black 

 river and Trenton limestones. The beds dip westward at a 

 small angle and are divided into large blocks by vertical 

 joints. 



There is a blue limestone at the top which is made into 

 lime, or used for common wall work. Under it is the gray 

 sub-crystalline variety, in what are known as the 32-inch 

 and the 16-inch beds, beside thinner beds lower down. The 

 surface courses furnish stone for lime manufacture. The 

 stone of the thicker beds is cut for lock facing and bridge 

 work ; the thin beds are worked into house trimmings. 

 These quarries are on the shore of the bay, convenient to 

 navigation, and are near the railroad also. The product is 

 increasing from year to year. Much of the Chaumont 

 stone has been put into Erie canal locks. 



The Protestant Episcopal church, the County Clerk's 

 office and City Opera House in Watertown are examples in 

 construction. 



Oswego, Fulton and Utica are other markets. 



Ogdensburg/St. Lawrence County. — The number of stone 

 buildings in Ogdensburg is comparatively large, and the 

 material is almost all out of local quarries in the Chazy 

 limestone formation. 



The Town Hall and the St. John's Protestant Episcopal 

 church are beautiful examples of the stone which is found 

 here. The quarry which is now worked for the local sup- 

 ply is on the Oswegatchie river, two miles south of the 

 town. 



Norwood, St. Lawrence County. — A blue limestone is quar- 

 ried one and a half miles from Norwood on the O. & L. C. 

 R. R. line. It can be seen in the Presbyterian churches at 



