236 Geology, &c. of the Connecticut. 
crystals penetrating a vein of quartz in mica slate in place. 
In Conway a few small crystals have been observed exhib- 
iting the primitive form and presenting the “kind of twin 
crystal,” described in Rees Cyclopedia, Art. Rutile. This 
mineral, indeed, may be found in almost any spot between 
Conway and Brattleborough, ona strip several miles wide. 
112. Silico-Calcareous Oxide of Titanium. At Brattlebo- 
rough, near the north line of the town ina bowlder of gra- 
nite, which has flesh coloured feldspar—colour dark brown, 
or chesnut. Some of the crystals appear to be six sided 
prisms. (Dewey.) These prisms are terminated, if IJ 
mistake not by three sided pyramids. I also noticed a four 
sided, flattened and striated prism, whose terminations 
could not be determined. 
113. Ferruginous Oxide of Columbium. “At Haddam, in 
granite. (Berzelius and Torrey.) 
Remark.—Since the above list of localities was comple- 
ted the following have occurred; but as they cannot be 
conveniently inserted in their proper places they may be 
mentioned here. .. 
Fibrous Limestone, Satin Spar, in bituminous shale— 
a “es pa at Sunderland, Andalusite, at Litchfield, 
elafield. 
[To be concluded in the next N umber.]’ - 
