MACK EE — ON FOSSIL BIEDS. 



17 



Remarks on the Fossil Impressions in the Sandstone Rocks of Connecticut 

 River. By Professor John C. Warren, M.D. 1 vol. of 54 pages and 1 

 plate. 1854. 



On the Footprints occurring in the Pottsdam Sandstone of Canada. By 

 TV". E. Logan, Esq. In ' Quarterly Journal of Geological Society,' 

 1852. p, 199. 



Description of the Impressions of Footprints of the Prctotichnites, from 

 the Pottsdam Sandstone of Canada. By Professor R. Owen, F.R.S. 

 In ' Quarterly Journal of Geological Society,' 1852, p. 214, with 10 

 plates. 



On recent Bird-tracks on the Sand of the Bay of Fundy. By J. L. 



Hayes. In 'Annual of Scientific Discovery ' for 1851, p. 314. 

 On the Reptilian Footprints in the Carboniferous Rocks of Eastern 



America ; Impressions (chiefly Tracks) on Alluvial Clay in Hadley, 



Massachusetts. By Charles H. Hitchcock. In ' American Journal of 



Science,' May, 1855. 5 pages. 

 Fossil Footmarks on the Red Sandstone of Pottsville, Pennsylvania. By 



Isaac Lea. 16 pages super-royal folio, with 1 double lithographic plate. 



1855. 



On a Few Fossil Footprints {Gigandipus caudatus). By Edward Hitch- 

 cock. In ' American Journal of Science,' new series, vol. xxi. p. 96. 

 3 pages and a sketch. J auuary, 1856. 



On New and Remarkable Gigantic Fossils and Footmarks. By John C. 

 Warren, M.D. Read before the Boston Society of Natural History, 

 January, 1856. In 'Boston Daily Traveller/ January 24th, 1856. 



Additional Facts respecting the Tracts of Otozoum Moodii on the Liassic 

 Sandstone of the Connecticut Valley. By Edward Hitchcock. In 

 Proceedings of American Scientific Association, 1856, p. 228. 



On the Sandstone Fossils of Connecticut River. By James Deane, M.D. 

 6 quarto pages, with 3 plates. In ' Journal of the Academy of Natural 

 Science,' second series, vol. iii. March, 1856. 



Connection of Fossil Footprints with the Theory of Progressive Develop- 

 ment. By Professor H. D. Rogers. In ' Annual of Scientific Dis- 

 covery,' 1856, p. 314. 



Fossil Footprints. By Professor J. Wyman. Discovered by Professor 

 H. D. Rogers, in Carboniferous strata, Pennsylvania. In Proceedings 

 of Boston Society of Natural History, vol. v. p. 258. 'American 

 Journal of Science,' vol. xxi. new series, p. 441. May, 1856. 



Notice of Ckelichius Wymanianus. By Isaac Lea. In ' American Journal 

 of Science,' vol. xxii. new series, p. 123. July, 1856. 



Ichnology of New England. A Report on the Sandstone of the Connec- 

 ticut Valley, especially its Fossil Footmarks, made to the Government 

 of Massachusetts. By Edward Hitchcock. 1 vol. quarto, of 232 pages, 

 with 60 plates, illustrating one hundred and nineteen species of the Con- 

 necticut Valley, 1858. 



It would interfere with our plan, however, to enter here into de- 

 tails of these footprints, and we shall therefore pass on to the first 

 notice of the actual remains of birds in this formation, reserving 

 hereafter a chapter especially devoted to Ornithictites, and tbe evi- 

 dence they afford of the classes of birds or animals that made them. 

 This occurs in Mr. E. Emmons's ' American Geology,' part vi., pub- 

 lished at Albany, N. T., in 1857, where at page 118 is the following 

 description : — 



VOL. VII. D 



