616 



CATALOGUE AND INDEX OP 



[BULL. 127. 



Massachusetts— Contiuued. 



1843. riants from lied Sandstone, 

 Hitchcock, E. 



The phenomena of glacio-aqueous 

 action in North America, Hitch- 

 cock, E. 

 184i. American geology and condition 

 of research in United States, 

 Rogers, H. D. 



Pothole in Warwick, Pierce, E. 



Tertiary of Marthas Vineyard, 

 Lyell. 



Age of plumbago in schists near 

 Worcester, Lyell. 



Ferns from coal, Techamaoher, 

 Jackson, C. T. 



Dispersion of drift blocks in 

 Berkshire, Hitchcock, E. 



Map of Massacliusetts, Hitch- 

 cook, E. 



Explanation of geological map, 

 Hitchcock, E. 



Dendrites on slate at Newton, 

 Techamacher. 



Trap tufa of Connecticut Valley, 

 Hitchcock, E. 



Native copper in Whately, Hitch- 

 cock, E. 



Fossil footmarks at Turners Falls, 

 Deane. 



1845. Travels in North America, Lyell. 

 Relations of trap and sandstone, 



Whelpley. 

 Miocene Tertiary of Maryland, 



Virginia, and the Carolinas, 



Lyell. 

 Minerals accompanying trap 



Jackson, C. T. 

 Polarity of trap, Hitchcock, E. 

 Dispersion of drift blocks in 



Berkshire, Hitchcock, E. 



1846. Agriculture of New York, Em- 



mons, E. 

 Remarks on Taconic, Emmons, E. 



1847. Drift and glacial action in New 



England, Desor. 

 Trains of blocks in Berkshire, 



Rogers and Rogers. 

 Illustrations of fossil footmarks, 



Deane. 

 Trap tuff of Connecticut Valley, 



Hitchcock, E. 



1848. Terrain erratique de I'Amdrique 



du Nord, Desor. 

 Statistics of coal, Taylor, R. C. 

 Drift near Boston, Stodder. 



Massachusetts— Continued. 



1848. Rogers and Rogers, Desor. 

 Bowlder trains in Berkshire, 



1849. Tertiary, etc., in island of Nan- 



tucket, Desor, Cabot. 

 Ancient sea margins, Dana, J. D. 

 Shells in cliffs of Nantucket, 



Desor. 



1850. Lake Superior, Agassiz, L. 

 Terraces of Connecticut Valley, 



Hitchcock, E. 

 Erratic phenomena about Lake 

 Superior, Agassiz, L. 



1851. Fossil calamite from Bridge- 



water, Jackson, C. T. 



Parallelism of mountain chains 

 in America, Desor. 



Significance of absence of pot- 

 holes, Hitchcock, E . 



Ripple marks from Brookline, 

 Cabot. 



" Ridge road," Rochester to Lew- 

 iston, Desor. 



Scratches in Brookline, Cabot, 

 Desor. 



Fissures in pudding stone of 

 Roxbury, Jackson, C. T. ; 

 Ifogers, H. D. 



Age of copper rocks of Lake 

 Superior and physical structure 

 of Canada, Logan. 



Origin of ridge roads and similar 

 features, Stodder. 



Agency of gas and steam in rook 

 alteration, Rogers, W. B. 



Direction of scratches and cleav- 

 age in Roxbury, Jackson, C. T. 



Erosion of the earth's surface by 

 rivers, Hitchcock, E. 



Fossils from Nantucket, Desor, 



Age of red sandstones of the 

 United States, Jackson, C. T. 



FoBsiliferous rock under Nahant 

 syenite, Agassiz, L. 



Origin of contorted strata of sand 

 and clay, Desor. 



Terraces and beaches in Connec- 

 ticut Valley, Hitchcock, E. 



Analysis of red marl at Spring- 

 field, Jackson, C. T. 



Superposition of drifts near Cam- 

 bridge, Agassiz, L. 



1852. Origin of stratiticatiou, Wells, 

 D.A. 



