INDEX. 229 
Page. 
Tuscola County, beach 95 
Types, The study of, in the presentation of botany and zoology 145 
U. 
U. S. Geological Survey, Fuel testing 104 
Upland of West Norway 2b, 29 
Upper Grassmere beach 92 
Urticaria following the second dose of diphtheria anti-toxin 211 
V. 
Vaccine, bacterial 126, 113 
Variations, of common plants 37 
Vaughan, V. C., Sr., Past-President 13 
Different forms of immunity 21 
The effect of egg-white and its split products on animals. ... 211 
Vaughan, V. C., Jr., Sensitization and its application to practical medicine 21 
Voyage of Columbus to America, easy 24 
W. 
Walker, Bryant, Past-President 13 
The distribution of Lymnae in Michigan 22, 211 
Water crowfoot 39 
Wind, effect of, on the formation of mechanical tissue 45 
Winter stage of Sclerotinia fructigena 51 
Wood, Norman A., The bird environment of the Ann Arbor Quadrangle with 
notes on the rarer species 21 
Y. 
Ypsilanti Bayou, Birds of the 162 
Z. 
Zeeuw, Richard M., Poisonous excretions of roots 20 
