The Polar Hares of Eastern 

 North America, with < It-- 

 sriptions of New Forms 



Si 2 

 297 



47 7 



61° 

 723 



~iz 



Z' 5 

 175 



594 



905 

 223 



$ 



»75 



060 

 613 

 ; ; 



41° 



j :,2 



415 



495 



Segmentation of Frog's Eggs... 

 Segmental Scleriu-s oi Spiroho- 



761 



33 2 



744 





Rock Differential 



of, 



Selenka, F 







Setciieli"\v"\ 





of Glacier Bay, Alaska 





G5 



Sexual Rights and Letts .. 



Shear, C. L. Review of Recent 

 Papers on the Relation be- 

 tween the Ascomyctes and 



from the Sweet < irass Hills, 





Rock Powder, result of melt 



ng. 





Certain Rhizopods, J 

 Hemmeter 



l c. 



Shio. .u.i, M 



Shrews of North America 



Shufel.lt, R.W Progress in Am- 

 erican Ornithology, 1S86- 



Sight, Sense of, in Spiders 



^sZZZZZZZZ 



Simpson. C. T. On the Missis- 

 sippi Valley Unionidae 

 found in the St. Lawrence 

 and Atlantic Drainage 



122 







IS 



Rot of Sugar Beets 





S a !SU;t::::::::: 





55 











































1 0! 



159 



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Effects of Loss of, H. C 



'^tosa 



Slonaker, J. K. A Comparative 

 Study of the Point of Acute 





r, n C 



>pe. 



M 









Smirnow, Dr. A 



Smith, E. F. Abstract of Bach- 

 man's Spore Formation 



ditions.. .' 



■ :. H 

















63 



: re ot Mont Jov 







Pores aCt0fXeStl ' "^ ^^ 







',46, 





438, 526, 611, 693, 866,. 

 Spiroboltts 



berdie Bedeutung <les Zuck- 



Bakterien 



Bacterial Diseases in Plants 



626, 



Changes due to an Alpine 



Change in Structure of 

 Plants due to Feeble Light 

 A Graft Hybrid. 



66 







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, 'Ceding "l 





6r 

 318 



Seal Herd, Dest 





Note on Henslow's Desert 



