INDEX TO VOLUME XIX 767 



PAGE 



Mining Industry in North Carolina during 1907 with Special Report on 

 the Mineral Waters, The. By Joseph Hyde Pratt. Review by 

 E. R. L 192 



Mining Operations in the State of South Australia during the Half-Year 

 Ended December 31, 1910, A Review of. Issued by T. Duffield. 

 Review by A. D. B. ........ 479 



Mississippian-Pennsylvanian Unconformity and the Sharon Con- 

 glomerate, The. By G. F. Lamb ...... 104 



Mississippi State Geological Survey, 1907. By Albert F. Crider. 



Review by E. R. L. . . . . . . . 480 



Missouri Bureau of Geology and Mines. Biennial Report of the State 

 Geologist for the Years 1909 and 19 10. By H. A. Buehler and 

 Others. Review by E. R. L. . . . . . . . 480 



Modern Improvements in Rock Section Cutting Apparatus. By H. J. 



Grayson. Review by Albert Johannsen . . .183 



Monroe Formation of Southern Michigan and Adjoining Regions, The. 



By A. W. Grabau and W. H. Sherzer. Review by S. W. . . 664 



Moore, E. S. The Differentiation of Keweenawan Diabases in the 



Vicinity of Lake Nipigon . . . . . . . .429 



Neues Mikroskop Modell Wlb fur krystallographische und petro- 



graphische Studien. By C. Leiss. Review by Albert Johannsen 466 



Newland, D. H., and Henry Leighton. Gypsum Deposits of New 



York. Review by E. R. L. . . . . . . -576 



Nordenskjold, Ivar. Der Pegmatit von Ytterby. Review by W. T. 



Schaller ... 187 



North American Index Fossils: Invertebrates. By Amadeus W. 



Grabau and Hervey Woodburn Shinier. Review by S. W. . . 470 



Notes on the Osteology of the Skull of Pariotichus. E. B. Branson . 135 



Northwest Territories Drained by the Winisk and Attawapiskat Rivers, 

 Report on a Part of the. By William Mclnnes. Review by 

 H. C. C 576 



Oil Resources of Illinois with Special Reference to the Area outside of 

 the Southeastern Fields. By Raymond S. Blatchley. Review by 

 E. R. L 666 



Olenellus and Other Genera of the Mesonacidae. By Charles D. Wal- 



cott. Review by S. W. . . . . . . . .472 



Optical Properties of Crystals, The. By Groth-Jackson. Review by 



Albert Johannsen ......... 464 



Ore Deposits of New Mexico, The. By Waldemar Lindgren, Louis 



C. Graton, and Charles H. Gordon. Review by W. H. E. . . 276 



Original Ice Structures Preserved in Unconsolidated Sands. By 



Charles P. Berkey and Jesse E. Hyde. ..... 223 



