INDEX. 



PAGE. 



Spleen, Structures in 179 



Sponges, New 54 



Sponges, Species of 138 



Sponges, Structure of 79 



Sponge, The Boring. J. D. Hyatt 81 



Stands, About 54 



Stands, Large vs. Small. C. Stodder. . 13 

 Staining, Double, with Carmine and 



Anilin Green. T. W. Taylor 92 



Staining of Living Unicellular Organ- 

 isms 50 



Starch-granules, Examination of 218 



Steam Engine, Minute 19 



Sternberg, G. M. New "Work on Mi- 

 croscopy 40 



Stevens, W. Leconte. Physiology of 



Variable Apparent Magnification.... 189 

 Stodder, Charles. Large vs. Small 



Stands 13 



Stokes, A. C. A Food Habit of Difflu- 



gia Pyriformis 93 



Stokes, A. C. A New Thuricola 182 



Stokes, A. C. Sphagnum, Desmids, 



Rhizopods and Eels 152 



Studies in Microscopical Science 133 



Subscribers in Great Britain 52 



Substage Refractor, Gundlach's 142 



Synopsis of Diatoms 179 



Synopsis of Rhizopods 75 



Table of Numerical Aperture 134 



Tadpoles 197 



Taylor, T. W. Double Staining with 



Carmine and Anilin Green 92 



PAGE. 



Tests, Ruled Lines as 77 



The Microscope 58 



Thuricola, A New. A. C. Stokes 182 



Tobacco, Effects of 234 



Topaz, Carbon Dioxide in 39 



Trichina Spiralis, 178, 217 



Tube-casts, Staining and Preservation of. 



A. T. Parker 153 



Tuberculosis 57 



Tubercular Disease, The Micro-organ- 

 isms of. L. Schoney 125 



Tuttle, A. H. Abstract of Address 205 



Tuttle, A. H., Address of 218 



Vaccination 15 



Van Dyck. Apparent Motions of Ob- 

 jects 72 



Van Dyck, F. C. Significant Angle. . . 154 



Volume, The Current 215 



Vorce, C. M. Adulteration in Food... 121 



Vorce, C. M. Motion of Diatoms 43 



Warren, R. S. The Preparation of Di- 

 atoms Ill 



Water and Air, Examination of, for 



Sanitary Purposes 227 



Water, Boston 14 



Water, Colored by Algse 94 



Wax Cells, Composition for 99 



White, M. C. Examination of Blood- 

 stains 6 



Wil ford's Microcosm 239 



Wolle, F. Rotifer Nests 101 



Yellow Fever, Prevention of 118 



