20 CONNECTICUT GEOL. AND NAT. HIST, SURVEY. [Bull. 



51. Dana, J. D. 



On the relation of the so-called kames of the Connec- 

 ticut river valley to the terrace formation. 



Am. Jour. Sci., (3) xxii, 451-468, 1881. 



Criticism of Upliam's theory of kames. Concludes that the so-called 

 " kames " are really part of the terrace formation. (See Upham, 283.) 



52. Dana, J. D. 



The flood of the Connecticut river valley from the melt- 

 ing of the Quaternary glacier. 



Am. Jour. Sci., (3) xxiii, 87-97, 179-202, 360-373, i pi, 

 1882; xxiv, 98-104, map, 1882. 



Abridged: Connecticut Almanac, 34-52, map, 1888. 



Discussion of the general condition of the Connecticut and its 

 tributaries during the progress of the flood; the origin of the channel- 

 way of the river; the question as to which is the normal upper terrace 

 in any part of the valley; dimensions, velocity, and discharge of the 

 flooded river; the bearing of the facts on the retreat of the glacier; 

 the question as to the elevation of the land. 



53. Dana, J. D. 



Geological age of the Taconic system. 



Geol. Soc. London Quart. Jour., xxxviii, 397-408, map, 

 1882. (Read April 5, 1882.) Abstract: Phil. Mag., xiii, 

 373-374, 1882. Abstract by author: Am. Jour. Sci., (3) 

 xxiv, 291-293, 1882. 



All observers describe the schists and limestones of the Taconic area 

 as conformable. They belong to one system, and have a high eastward 

 dip. The limestone and schist are Lower Silurian, and the schist is 

 the younger. Chief part of schists is of Hudson river age. 



54. Dana, J. D. 



Evidence from southern New England against the ice- 

 berg theory of drift. 



Am. Assoc. Adv. Sci., Proc, xxxii, 195-198, 1883; Science, 

 ii, 390-392, 1883. 



Evidence: From — i. The scratches and groovings over the rocks; 

 2. The transported bowlders and other materials; 3. The facts as to 

 the relative level of land and sea (maximum difference of 35 feet be- 

 tween then and now), showing that the iceberg theory of drift is un- 

 satisfactory for southern New England. 



.55. Dana, J. D. 



[Review of] " Annual report of the state geologist of 

 New Jersey for 1882," by G. H. Cook. 

 Am. Jour. Sci., (3) xxv, 383-386, 1883. 



Objection to Cook's hypothesis that " the various areas of the red 

 sandstone formation east of the Appalachians, from Massachusetts to 

 South Carolina, were once in some way connected, and perhaps those 

 farther northeast in the British provinces." Brief statement of the 

 origin of the Jura-Trias of eastern North America. 



