446 PROCEEDINGS OF THE NEW YORK MEETING 



154. On the genera »S|pm/(?ra, Cyrtina, and allied genera: Ihkl., pp. 251-257. 



155. On the genera Athyris, Merlita, and Merulella : Ibid., pp. 258-260. 



156. Note npon the genns Zygospira and its relations to Alrypa: Ibid., pj). 267-268. 



157. Remarks npon the genera Rhynchonella and Leiorhynchns : Ibid., p[). 269-273. 



158. Note on the genus Eichwaldia : Ibid., pp. 274-278. 



159. On the genus Tropidoleptus : Ibid., pp. 279-281. 



160- Note on tiie genus Palxader, with descriptions of some new species, and oIj- 

 servations upon those previously described: Ibid., pp. 282-303, 1 pi. 



161. Account of some new or little-known species of fossils from rocks of the age 



of the Niagara group (originally printed in advance for the Eighteenth 

 Report in the New York State Cabinet, 1864) : Ibid., pp. 305-401, 15 pis. 



162. * Observations on the genus Streptorhynchus : Ibid., p. 241. 



163. * Observations on the genus IStrophodonta : Ibid., p. 241. 



164. * On the genera P^»ia/uerus ?i,nd StricMandinia, &n(\. their supposed relations 



with Rensselaeria: Ibid., p. 273. 



165. * On the genera Terebratida, CentroneUa, Cryptonella, etc. : Ibid. , p. 279. 



166. *Descripti*ons of some new species of Crinoidea and other fossils from the 



Lower Silurian strata, principally of the age of the Hudson River group: 

 Ibid., p. 304. 



167. * Descriptions of Bryozoa and corals from the Lower Helderberg group of 



New York: Ibid., p. 304 (published in Twenty-sixth Report, 1874). 



168. * Descriptions of Bryozoa, etc., from the Upper Helderberg and Hamilton 



groups of New York : Ibid., p. 304 (published in Trans. Alb. InM., 1882). 



169. * Miscellaneous notices: Ibid., p. 304. 



170. *0n the geological relations of the mastodon and fossil elephant (see Twenty- 



first Report on the State Cabinet of Natural History, Albany, 1871) : Am. 

 Assoc. Adv. Sci., 16th meeting (Burlmgton, 1867), Cambridge, 1868, p. 161. 



171. *0n the geograjMiical distribution of the sediments and of the fossils in the 



Hamilton, Portage, and Chemung groups of New York : Ibid., p. 161. 



172. * On the value of the term Hudson River group in geological nomenclature 



(see also for printed notes Proceedings Nashville Meeting, Am. Assoc. Adv. 

 Sci., 1877) : Ibid., p. 161. 



173. *0n the occurrence of fossil sponges in the successive groups of the Paleo- 



zoic series: Ibid., p. 16L 



174. Geological history of the North American continent; a lecture delivered be- 



fore the American Institute in New York (Albany, 1869), 24 pp. 



175. * Preliminary notice of the Lamellibranchiata of the Upper Helderberg, 



Hamilton, and Chemung groups: Proc. Am. Assoc. Adv. Sci., 18th naeeting 

 (Salem, 1869), Cambridge, 1870, p. 282. 



176. Preliminary notice of the Lamellibranchiate shells of tiie Upper Helderberg, 



Hamilton, and Chemung groups, with others from the Waverly sandstones. 

 (Preparatory for the Palaeontology of New York.) Part ii : State Cab. xVoi. 

 Hist. (December, 1869), Albany, 1870, 97 pp. 



177. * Recent progress in geology: Trans. Alb. Inst., 1805, vol. vi, Albany, 1870, 



pp. 291-294. 



178. * Notice of the fossil plants of the Hamilton and Ciienuing groups, with ref- 



erence to the source of the sediments of these formations : Proc. Am. Assoc. 

 Adv. Sci., 19th meeting (Troy, 1870), Cambridge, 1871, p. 362. 



