No. 2. 
1SS7. 
CONTENTS. 
Varieties of Woodsia obtusa and Viola palmata. Willard A. Stowell, 
A Key to the Rotifera. Dr. T: S. Stevens, 
Some Observations on the Anatomy of Cicada septendecem. Illustrated. Ellis 
A. Apcjar, - - 
A Few Wild Flowers Under Cultivation, II. Ernst Volk, - - - - 
A Case of Bone Reconstruction. Dr. H. G. Wetherill, ... - - 
Nesting Habits of the Humming-Bird. Prof. Wm. Macfarland, - 
The Muskrat and the Unio. Prof. Austin C."Apgar, 
Analytical Key to the Fresh-Water Polyzoa. Illustrated, - - - . - 
Publications Received, - - 
TRENTON, N. J. : 
Published by .the Society. 
1887 . 
Arrow Print. 
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