INDEX. 
255 
R. Page 
Reighard, Jacob 104 
Report of the librarian 238 
Report of the treasurer 18 
Report upon the progress of the biological work of the Michigan Geological and Biological Survey 
during the year 1912-1913. Alexander G. Rut liven 210 
Results of the Shiras Expedition to Whitefish Point, Michigan, Crystal Thompson and Helen 
Thompson 215 
Ripple marked Huronian quartzite at Nipissing Mine, Cobalt, Ontario, R. E. Hore 59 
Role of vegetation of a mill pond, Fred A. Loew 201 
Ruthven, Alexander G 210,238 
Ryder, Edward H 95 
S. 
Saginaw oil field, R. A. Smith 33 
Sarcoptid mite in the cat, Harold Cummins 106 
Secret remedies, nostrums and fakes, W. S. Hubbard 78 
Smith, Bertram G 105 
Smith, R. A 33 
Solidago in Michigan, key to the species and varieties of, Chas. H. Otis 205 
Some interesting plants from the vicinity of Douglas Lake, Henry Allen Gleason 147 
Some notes on the black knot of plums and cherries, J. A. McClintock 142 
Some observations on intestinal villi, Otis M. Cope 129 
Sphingidae (Hawk Moths), check list of Michigan Lepidoptera, II, W. W. Newcomb 213 
T. 
Table of contents 5 
Taxation of local public utility corporations in Michigan, Edward H. Ryder 95 
The nature of enzyme action, James Gordon Cumming 60 
Thompson, Crystal 215 
Thompson, Helen 215 
Treasurer, report of the 18 
Tucker, David A., Jr 121 
V. 
van Suchtelen, F. H. Hesselink 65 
W. 
Water purification, ozone as a means of, R. W. Pryer 74 
Z. 
de Zeeuw, Richard 
209 
