SCHULTZE, E. A., Bacillus Le- 



prce and B. tuberculosis, 24 



Sealed Flasks of Crystal 139 



Septic Organisms, 110 



Silicate of Soda as a Mounting 



Medium 213 



Silicified Wood from Ari- 

 zona, 198, 210, 220 



Smith's, Prof. H. L., Newest 

 Mounting Medium, Observa- 

 tions on, 102,158 



Spicules of Heteromeyenia Ry- 

 deri, Description of,.... 38, 39, 40 



, Dimensions of,. 104 



Sponge, Fresh- Water {Hetero- 

 meyenia Ryderi), 37 



, Observations on, 46 



Sponges, 116 



: Boring Sponge, 121, 124 



, Embryology of,. . . .118, 119 



: Glass Sponge, 121 



Spore Coal, Note on 19 



Sporules, The Minuteness of,... 29 



Starch in Leaves, 28 



Stentor, Mechanical Self-Di- 

 vision of, 209 



Stephanodiscus Niagarce, 41 



Stokes, Alfred C, A 'New 



Symbiotic Infusorian, 152 



Swine Plague (Pneuvio-ente- 

 ritis), Micro-Organisms of,. 41, 42 



Synapta, Note on, 100 



Tahanus, Eyes of, 34, 52 



Tamarack, Medullary Rays of,. 27 



Trachelius ovum, 97 



Treasurer, Report of the, 45 



Triceratium Davyanum, 145 



Uric Acid from a Caterpillar, 

 Feather Crystals of, 217 



Vacation, 191 



Van Brunt, C, The President's 

 Address, 53 



, Prof. H. L. Smith's 



New Mounting Medium, 158 



Visual Field of Woi-ker Honey- 

 Bee's Ocelli, 88 



Wales, William, The Proper 

 Care and Use of Microscope 

 Lenses, 113 



Wash-Bottle, Filter, The Hana- 

 man, 125 



Woodward, A., Bermuda Fo- 

 raminif era, 147 



Working Session, The, of the 

 American Society of Micro- 

 scopists, 109, 111 



Zabriskie, J. L., Caterpillar 

 Fungus from New Zealand, 

 and some Related Species of 

 the United States 89^ 



-. , Lenticular Markings of 



Various Coniferte Compar- 

 ed, 218 



, Triungulin Larva of Meloe 



angusticoUis 155 



, Visual Field of Worker 



Honey Bee's Ocelli 88 



Zentmayer's Abbe Condenser, .15(> 



