XX INDEX TO VOLUME IV 



PAGE 



Petrography, Needed Term in-- - - - - - - - -128 



Petrological Sketches, Italian - - ' - - - - - - 541, 826 



Phonolites ------------- 846 



Physical Features of Missouri. C. F. Marbut. Review by R. D. S. - - 877 



Pitted Plains ------ 955 



Plants in Rock Decay ----------- 855 



Plutonic Plugs ----------- 25, 183 



Piedmont Plateau, Granitic Rocks of ------- - 638 



Pike's Peak Folio, U. S. Geologic Atlas - - - - - - - 251 



Pirsson, L. V. Needed Term in Petrography. (Abstract) - - - - 121 



On the Monchiquites or Analcite Group of Igneous Rocks - - - 679 



Weed, W. H., and. Geology of the Little Rocky Mountains - - 399 



Popocatapetl, Expedicion Cientifica al ------- - 516 



Possible Depth of Mining and Boring - - - ... - 244 



Post-Jurassic History of the Sierra Nevada ..---.- go6 

 Pre-Cambrian Literature --------- 362, 744 



Preglacial and Postglacial Valleys of the Cayahoga and Rocky Rivers. War- 

 ren Upham. (Abstract) - - - - - - - - - 127 



Preparation of Rock Sections. J. P. I. (Editorial) 354 



Pressure in Glaciers - - - - - - - - - - -915 



Pre-Tertiary Nephaline-Bearing Rock - - - - - - - -160 



Primary Formation of South Africa -------- 6 



Principles of Rock Weathering. G. P. Merrill ----- 704^ 850 



Problems of Kame Areas - - - - - - - - - " I55 



Proceedings of the Indiana Acad. Science, 1895 ; Geological Subjects. Review 



byj. C. B. - - - - - - - - - - - 981 



Production of Coal in 1894. E. W. Parker. (Abstract) - - - - 757 



Projecting Layers of Glacial Ice --------- 590 



Prosser, C. S. Classification of the Upper Palaeozoic Rocks of Central Kansas. 



Review by C. R. Keyes --------- 520 



Purdue, A. H. Review: Geology of the San Francisco Peninsula. A. C. 



Lawson - - - - - -.- - - - - - 640 



Pyroxenes, Monoclinic -----------651 



Quaternary Changes of Level near the Bay of Finland ----- 982 



Quaternary Deposits of Missouri. (Review) ------- 976 



Queen's River Moraine in Rhode Island. J. B. Woodworth and C. F. Marbut 691 

 Rainy Lake, Anorthosites ---------- 907 



Ransome, F. L. Great Valley of California. Review by C. R. Keyes - - 729 

 Reviews : Elaolithsyenit der Serra de Monchique, seine Gang- und 



Contactgesteine. K. v. Kraatz-Koschlan and V. Hackman - - 977 



Eruptivgesteine des Kristianiagebietes. W. C. Brogger - - - 738 



Reade, T. Mellard. British Geology. Review by C. R. Keyes - - - 729 



Recent Literature ----------- 377, 654 



Recent Notable Deaths. (Editorial.) T. C. C. - - - - - - 725 



Reid, Harry Fielding. Mechanics of Glaciers. I - - - - - - 912 



Relation of Stratified to Unstratified Drift - - - - - - - 962 



