ORES — OSTWALD 



141 



Page 

 Ores, Accumulation of 2, 219 



— of the Sudbury district 2, 131 



Organisms, Former distribution of 2, 14 



— , Studies in problematic ; The genus ScoUihus; J. F. James 3, 32 



Origin and relations of the Grenville-Hastings series of the Canadian Lau- 



rentian ; A. E. Barlow and F. D. Adams 8, 398 



— of conglomerates of western Indiana ; T. C. Hopkins 8, 14 



grahamite ; I. C. White 10, 277 



Pennsylvania anthracite ; J. J. Stevenson 5, 39 



the Highland gorge of the Hudson river ; F. J. H. Merrill 10, 498 



gorge of Whirlpool rapids at Niagara ; F. B. Taylor 9, 59 



Oriskanv quartzite in New York and New Jersey 5, 375, 377, 378 



— sandstone of New York 9, 180 



Orogenic history of California 2, 325 



Orogeny, Analysis of 2, 56 



Orographic movements in the Grand Canyon region 1, 51 



Rocky mountains 1, 245 



Orr, Charles, Society's library in charge of 8, 364 



Orthid^e (On the family) of the Brachiopoda ; James Hall 2, 636 



Orthis, Revision of the genus 1, 19 



Orthisina bed, Description of 3, 264 



Orting gravels of Washington 9, 147 



Orton, Edward, Acknowledgment to 3, 193 



— cited on the Hudson River group 1, 350 



natural gas 3, 209, 215 



petroliferous limestone 4, 408 



Pleistocene forest beds 1, 312 



the Waverly 2,31 



— elected President 8, 369 



second Vice-President 7, 460 



— , Eulogium of Alexander Winchell by 3, 56 



— ; Geological structure of the lola gas field 10, 99 



probabilities as to petroleum 9, 85 



— ; On the occurrence of Megalonyx jeffersoni in central Ohio 2, 635 



— ; Origin of the rock pressure of natural gas 1, 87 



* — quoted on Bedford shale 2, 34 



Sylvania sand 1,32 



— , Resolution of sympathy for 3, 48 



— , Titles of papers by 1, 537 ; 9, 12, 413 ; 10, 480 



Osage limestone. Definition of 3, 290 



OsARS of Washington 9, 141 



OsBORN, H. F., Election of 9, 2, 393 



Osceola clays of Washington 9, 344 



— till of Washington 9, 143 



OsTRACODE (unidentified), Illustration of 2, 48 



Ostr-ha, New species of 3, 301 



OsTWALD, W., cited on chemistry of metamorphism 9, 273, 275-277, 282 



— , Reference to works of 9, 283 



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