NO. 



SMITHSONIAN EXPLORATIONS, I919 



17 



were also carried on. Work is now under way on the study of the 

 mineralogy of serpentine and its relation to the chlorite group, and 

 also the correlation of the chemical composition and the optical 

 properties of rhodonite, the latter in collaboration with Dr. E. S. 

 Larsen of the U. S. Geological Survey. 



In October various localities in Connecticut were visited by 

 Assistant Curator Earl V. Shannon, including the vicinity of Long- 

 Hill in Trumbull, where tungsten has been mined in years past. 

 Extensive collections comprising much interesting material were 



Fig. 17. — i ransportmg fossil specimens in Southeastern Indiana. 

 Photograph by Bassler. 



obtaiiied which will be studied and described. The trap quarries of 

 Meriden, Conn., were also visited and extensive collections of the 

 zeolites and other secondary minerals secured. The pegmatite locali- 

 ties of Collin's Hill in Portland ; the workings of the old cobalt mine 

 and the old lithia mine in Chatham, and a number of feldspar quar- 

 ries in this region were visited and collections of the representative 

 minerals secured. Much of the material collected as above has been 

 carefully examined and descriptions will appear in forthcoming num- 

 bers of the Proceedings. 



