92 



FORTY- SECOND ANNUAL REPORT ON THE 



190. Notes on some New or Imperfectly Known Forms among the 



Brachiopoda, etc. (published March, 1871; reprinted with 

 explanation of figures March, 1873). Ibid., pp. 244-247. 



191. Descriptions of New Species of Fossils from the Vicinity of Louis- 



ville, Kentucky, and the Falls of the Ohio. J. Hall and K. P. 

 Whitfield. 24th Ann. Kept. N. Y. St, Mus. Nat. Hist., pp. 181- 

 200. (6 pi. for same in 27th Rep.) Albany, 1872. 8vo. 



192. Report on Fossil Trees of Schoharie County. Ibid., pp. 15-16. 



193. Remarks on Some Peculiar Impressions on Sandstone of the 



Chemung Group, New York. J. Hall and R, P. Whitfield. 

 Ibid., pp. 201-204. 



194. Descriptions of New Species of Crinoidea and Other Fossils from 



Strata of the Age of the Hudson River Group and Trenton 

 Limestone. (In part previously published 1866.) Ibid., pp. 

 205-224, 3 pL 



195. Descriptions of New Species of Fossils from the Hudson Ri\er 



Group, in the Vicinity of Cincinnati,. Ohio. Ibid., pp. 225-232, 

 1 pi. (Published October, 1871, in advance of the State Cab. 

 Rep.) 



196. * On the occurrence of Trunks of Psaronius in an erect position, 



resting on their original bed, in Rocks of Devonian Age in the 

 State of New York; with some Inferences regarding the Con- 

 dition of the Sea-Bottom and Shore-line during the Depo- 

 sition of the Strata. Report of the British Association for the 

 Advancement of Science, 42d meeting (Brighton), 1872, p. 103. 

 London, 1873. 



197. *On the Relations of the Middle and Upper Silurian (Clinton, 



Niagara and Lower Helderbergs) Rocks of the United States. 

 Ibid., pp. 103-104. (Published in full in the Geological 

 Magazine, vol. IX. London, 1872. 4 pp.) 



198. On the Relations of the Niagara and Lower Helderberg Forma- 



tions, and their Geographical Distribution in the United States 

 and Canada. Proc. Am. Assoc. Ad. Sci., 22d meeting (Port- 

 land, 1873), pp. 321-335. Salem, 1874. 8vo. (Also published 

 in 27th Ann. Rept. St. Mus., 1875, with map.) 



199. Descriptions of Bryozoa and Corals of the Lower Helderberg 



Group. 26th Ann. Rept. N. Y. St. Mus. Nat. Hist., pp. 93-115. 

 (Published in advance.) Albany, 1874. 8vo. 



200. The Anderson School of Natural History and Geology of Peni- 



kese Island. Field meeting Albany Institute. 4 pp. Albany, 

 1874. 8vo. 



