﻿— 539 — 



U. S. geological siirvey. 



Bulletin N.o 183. — A gazetteer of Port Rico by Heniy Gannett. — 

 Washington, 1901. — S. 298. 



U. S. geological siiruey. 



Bulletin N." 184. — Oil and gas fields of the western Interior and 

 northern Texas leval Measures and of the Upper Cretaceous and' Ter- 

 tiary of the western Gulf coast by George I. Adams. — Washington, 

 1901. — S. 151. 



U. S. geological siirvey. 



Bulletin 185. — Results of spirit leveling fiscal years 1900 — Oí by 



H. M. Wilson; í, H. Renshawe; E. M. Douglas and R. U. Goode. - 

 Washington. 1901. — S. 152. 



U. S. geological suruey. 



Bulletin X/' 186. — On pyrite and marcasita by H. X, Ltokes. — 

 Washington, 1901. — S. 153. 



U, S. geological siiri'ey. 



Bulletin X.o 187. — Geographic dictionary of Alaska by Marcus Ba- 

 ker. — Washington, looi. — S. 154, 



U. S. geological survey. 



Bulletin N.o 188. — Bibliograph}- of Xorth American geology, pa- 

 leontology, petrolog)- and mineralogy for the years 1 892-1 900, inclu- 

 sive by Tred Boughton Weeks. — Washington, 1902. — S. 155. 



U. S. geological suriuy. 



Bulletin X.f' 189. — Index to Xorth American geology, |)aleontology, 

 petrology and mineralogy for the years 1892-1900, inclusive by Tred 

 Boughton Weeks. — W^ashington, 1902. — S. 156. 



U. S. geological suruey. 



Bulletin X." 190. — A gazetteer of Xexas by Henry Gannett. — Was- 

 hington, 1902. — S. 157. 



