﻿— 537 — 



U. S. geológica I siirvey. 



Bulletin N.o 165. — Contribution to the geology of Maine by Henry 

 S. W'illiam and Herbet E. Gregory. — Washington, 1900. S. 2S0. 



U. S. geological survcy. 



Bulletin N.o 166. — A gazetteer of ütah by Henry (Gannett. — Was- 

 hington, 1900. — S. 281. 



U. S. geological survey. 



Bulletin N," 167. — Contribution to chemistry and mineralogy from 

 the laboratory of the U. S. geological surxey. — Frank W. Clarke.- — - 

 Washington, 1900. — S. 282. 



U. S. geological suruey. 



Bulletin N.o 168. — Analyses of rocks from the laboratory of the U. 

 S. G. S. 1 880- 1 899, tabulated by F. W. Clarke. — Washington, 1900. — 

 S. 283. 



U. S. geological siirvey. 



Bulletin N.o 169. — xA-ltitudes in Alaska compiled b\- Henry Gannett. 

 — Washington, 1900. — S. 284. 



U. S. geological survey 



Bulletin N.o 170. — Survey of the bonndary line between Idaho and 

 Montana from the international bonnary to the crest uf the Bitterroot 

 Monntains by Richard Urquhart Goode. — Washington, 1900, S. 285. 



U. S. geological survey. 



Bulletin N.o 171. — Boundaries of the U. S. and of ihe several States 

 and Territories with an outline of the history of all important changes 

 of territory by Henry Gannett. — Washington, 1900. — S. 286. 



U. S. geological survey. 



Bulletin N.o 172. — Bibliography and index of North American geo- 

 lagy, palentolagy, petrology and mineralogy for the Vear 1899, by 

 Tred Bougton Wecks.— Washington 1900. — S. 287. 



U. S. geological survey, 



Bulletin N.o 173. — A synopsis of American fossil bryozoa incKding 



