786 INDEX TO VOLUME XX 
Magdalen Islands, Observation on the. By John M. Clarke. Review 
by A. E. F. : Fe aa), OY aes eee eS 
Mansfield, G. R., and R. W. Richards! The Bannock Overthrust: A 
Major F aul in Southeastern Idaho and Northeastern Utah . 
Marshall, P., R. Speight, and C. A. Cotton. The Younger Rock- 
Series of New Zealand. Review by A. E. F. : 
Maryland, Lower Cretaceous of. Review by David White 
Mather, Kirtley F., and Wallace W. Atwood. The Evidence of hee 
Distinct Seal Epochs in the Pleistocene History of the San Juan 
Mountains, Colorado Sail ee peoeee an Soha ence © a Mame ye Peet 
Maxville Limestone, The. By William Clifford Morse. Review by 
MeKay. Miccander and W. ie Sollas. The Rocks of Cape Colville 
Peninsula, Auckland, New Zealand. Review by Albert Johannsen 
Mead, W. J., and C. K. Leith. Metamorphic Studies 
Mehl, Maurice G. Muraenosaurus? reedii, sp. nov., and ‘encleduse 
laramiensis Knight, American Jurassic Plesosaure : 
Pantylus cordatus Cope 
Melting-Points of Minerals in the Light of Recent Tnvestigationae on the 
Gas Thermometer, The. By Arthur L. Day and Robert B. Sos- 
man. Review by Albert D. Brokaw . 
Melting-Points of Minerals in the Light of Recent Tnvestisacions on 
the Gas Thermometer, The. By A. L. Day and R. B. Sosman. 
Review by G. S. Rogers : : : : : : g : 
Metamorphic Rock? What Is a. By E. H. L. Schwartz. Review 
by G. S. Rogers : 5 : 4 : 2 ; 
Metamorphic Studies. By C. K. Leith and W. J. Mead ; 
Microscopical Petrography from the Quantitative Viewpoint. By 
Fred. Eugene Wright 
Milch, L. Die heutigen Ansichten iiber Weeen ind nncechune alee 
kristallinen Schiefer. Review by E. Steidtmann a 
———. Ueber Plastizitat der Mineralien und Gesteine. Review by 
E. Steidtmann . a Nb 2 oe 
Mining Districts of the Western! Unired States The. is James M. 
Hill. Review by A. D. B. : : : : ; : 
Mineral Industry of New Jersey for 1910, The. Ty Henry B. Kiimmel 
and S. Percy Jones. Review by A. E. F. : 
Mineral Production of Virginia during 1909 and 1910, Bicanral enor 
on the. Review by H. C. C. 
Mineral Resources for the Calendar Year 1910, Ncvaneek Chenin 
from: Mica, Graphite, Fuller’s Earth, Quartz and Feldspar. 
Review by A. D. B. 
Mineral Resources of the United Siates! 1909. BReciey ay Me 1D), B. 
Moore, E. S. Review of The Geology of the Lake Superior Region, by 
Charles Richard Van Hise and Charles Kenneth Leith 
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582 
681 
583 
GUS 
385 
581 
479 
353 
344 
21 
83 
271 
279 
353 
481 
272 
475 
679 
580 
284 
376 
678 
184 
