Recent progress in slate technology

Author:	Bowles, Oliver,
Year:	1926
Document Type:	BMRA
Issuing Agency:	U.S. Dept. of Commerce, Bureau of Mines,
Series:	Report of investigations / United States. Bureau of Mines ;
Report Number:	2766
Subjects:	Slate
	Slate roofing
	Slate industry--New York (State)
	Slate industry--Vermont
	Slate industry
Link:	https://hdl.handle.net/2027/mdp.39015086546416