No. 8.] BIBLIOGRAPHY OF CONNECTICUT GEOLOGY. 37 



Native iron, augite, and tremolite at Canaan; iron ore at Salisbury; 

 prehnite, greenstone, sandstone, and shale at Woodbury; petrified tree 

 stump at Southbury. In the vicinity of Lane's mine at Monroe were 

 found wolfram, topaz, carbonate of iron, hornblende, smoky and yellow 

 quartz, green feldspar, brown spar, associated with tripoli, black 

 schorl, chlorophane. 



138. Hitchcock, E. 



Report on the geology of Massachusetts, Pt. i. Eco- 

 nomic geology. 



Am. Jour. Sci., (i) xxii, 1-70, map, 1832. 



Describes the location and character of the following formations in 

 Connecticut: mica-slate, argillaceous and flinty slate, limestone, scapolite 

 rocks, gneiss, hornblende slate, granite. New Red sandstone, greenstone, 

 talcose slate; states their value as building stones and soil-formers. 

 Mentions iron ore at Salisbury, copper near Granby; soap-stone near 

 Somers; also porcelain clay. Gives opinion that the so-called coal 

 formation of Connecticut is the New Red sandstone or its equivalent. 



139. Hitchcock, E. 



Ornithichnologj'. Description of the foot-marks of 

 birds (ornithichnites) on New Red sandstone in Massa- 

 chusetts. 



Am. Jour. Sci., (i) xxix, 307-340, 2 pis., 1836. Abstract: 

 Neues Jarhb., 467-472, 1836. 



General and detailed description of bird-tracks found in sandstone 

 in various parts of Massachusetts. Comparison of birds to modern 

 species. Theories as to the geological age of the sandstone, as to the 

 geographical conditions at the time when the birds were alive, and as to 

 the manner in which the foot-marks were made and preserved. 



140. Hitchcock, E. 



Bed of the Connecticut river. 



Geol. Massachusetts, Final Rept., 334, 1841. 



Describes flow and fall of the Connecticut River. 



141. Hitchcock, E. 



The phenomena of drift, or glacio-aqueous action in 

 North America, between the Tertiary and Alluvial periods. 



Assoc. Am. Geol., Trans., 164-221, 1843. 

 Discussion of the origin of drift: " Phenomena of drift are the re- 

 sult of the joint and alternate action of ice and water." Some of the 

 data taken from observations in Connecticut. 



(The author at this early date accepted a great deal of the glacial 

 theory as known at the present day. — Ed.) 



142. Hitchcock, E. 



Description of several species of fossil plants from the 

 New Red sandstone formation of Connecticut and Massa- 

 chusetts. 



Assoc. Am. Geol., Trans., 294-296, i pi., 1843. 



Description of Coniferae found at Woodbury and Southbury. 



