INDEX TO VOLUME XXXI 699 



PAGE 



Ongley, M., and MacPherson, E. O. The Geology and Mineral 

 Resources of the CoUingwood Subdivision, Karamea Division. 

 Book Notice 616 



Paleobotany of Peru, Bolivia and Chile, Contributions to the. By 



Edward W. Berry. Review by A. C. N 350 



Paleozoic Angiosperm, A. By A. C. Noe . * 344 



Paleozoic Rocks Found in Deep Wells in Wisconsin and Northern Illi- 

 nois, The. By F. T. Thwaites 529 



Palmer, Katherine Van Winkle, Charles E. Weaver and. Fauna from 



the Eocene of Washington. Review by G. Dallas Hanna . . 261 

 Parana Basin, South America, The Lava Field Oi the. By Charles 



Laurence Baker 66 



Pebbles, The Shapes of. By Chester K. Wentworth. Review by 



C. H. Behre, Jr 161 



Pennsylvania, Mineralogy of. By Samuel G. Gordon. Review by 



H. E. McKinstry 434 



Pennsylvanian-Permian Glaciation, Was There, in the Arbuckle and 



Wichita Mountains of Oklahoma ? By Samuel Weidman . . 466 

 Penzer, N. M. The Tin Resources of the British Empire. Review by 



E. S. B 86 



Periodic Diastrophism, To Question the Theory of. By Francis Parker 



Shepard 599 



Perkins, George H. A Detailed Study of the Trenton Beds of Grand 



Isle. Review by A. C. McF 167 



. Mineral Resources [Vermont]. Review by A. C. McF. . 168 



Peru, Bolivia and Chile, Contributions to the Paleobotany of. By 



Edward W. Berry. Review by A. C. N 350 



Peru, Geology of the Tertiary and Quaternary Periods in the Northwest 



Part of. By T. O. Bosworth. Review by T. B. R. ... 524 

 Petrographic Microscope in Analysis, The. By Fred E. Wright. 



Review by Albert Johannsen 84 



Petrographic Microscope, Recent Improvements in the. By Fred E. 



Wright. Review b}^ Albert Johannsen 84 



Petrole, La Geologic du, et la Recherche des Gisements Petrohferes en 



Algerie. Par Marius Dalloni. Book Notice 166 



Petrological Abstracts and Reviews. By Albert Johannsen ... 80 

 Philippine Paleontology, Review of. By Roy E. Dickerson. Book 



Notice 166 



Philipsburg Region of Quebec, Geology of the, with Notes on Correla- 

 tions with the Beekmantown. By J. H. Bradley, Jr. . . . 314 

 Physiographic Development of the Big Thompson River Valley in 



Colorado, The. By Margaret Bradley Fuller 126 



