258 INDEX. 



Page 



Wright, Fred. Eugene, On a New Ocular for use with Petrographic Microscope. 95 



Intrusive Rocks of Mount Bohemia, Michigan 92 



the Transmission of Light through Transparent Inactive Crystal Plates 100 



Some Glacial Effects of Ice Action in Iceland 101 



, and Arthur L. Day, On Heizmikroskope 98 



, and Henry S. Washington, On a Feldspar from Linosa and Existence of 



Soda Anorthite 92 



, and W. F. Hillebrand, On a New Occurrence of Plumbojarosite 100 



Wright, J. M., On the Free Negro in Maryland 72 



X-ray Luminescence 236 



Yatsu, Nachide, Publication by . .... ; 52 



Young, Allyn A., On Transportation in California 69 



Young, F. G., On Transportation in the Pacific Northwest 69 



On Financial History of Oregon 71 



Zeller, Carl A 52 



Zies, E. G 218 



Zimmer, M. L 151, 152 



Zoology, Appropriations for 14 



Investigations concerning 239-242 



