8 Davis—Quarries in the Lava Beds at Meriden. 



lent local illustrations of faulted lava beds, but also as typical 

 examples of structures on whose recognition the interpretation 

 of the Triassic structure of the Connecticut valley depends. 

 The locality has been a favorite with me for a number of years, 

 always yielding new facts on repeated visits. During an excur- 

 sion made in company with a number of geologists at the close 

 of the meeting of the American Association in Springfield, 

 September, 1895, the lesson of the quarries was found to be so 

 much enlarged by their extension in the past three or four 

 years, that I made another visit there a few weeks later just 

 before the opening of our college year, so as to have leisure to 

 examine them in detail. It is from notes taken on the latter 

 visit that the following description is written. 



The quarries are opened in the southern quarter of a mile 

 of the Quarry ridge, which extends thence northward for 

 about a mile. The oldest quarry is at the end of the ridge ; 

 the others were opened in 1890. They are worked by Messrs. 

 John S. Lane & Son, for railroad ballast and road metal ; the 

 rock being crushed alongside of a branch of the Consolidated 



