INDEX. 



PAGE. 



Pipette, an efficient, D. S. Kellicott . 4 



Polarized light in microscopy .... 59 



Pollen tubes, C. R. Barnes 55 



Postal box, from Theodore Hinrichs . 215 



Postal club boxes — box W^ 16 



boxTs 57 



box C S7 



box P2 117 



box Cu iiS 



boxN 118 



boxB 118 



box S^ 158 



box A 158 



Postal club, nth annual report .... 55 



Preparing lantern-slides 215 



Preservative same density as water . . 38 



Preserving blood corpuscles 182 



fresh-water algce 239 



paste-eels 78 



• urinary casts ^8, 39 



urinary deposits 40 



use of chloral hydrate in ... . 196 



Prorodon limtieiis, n. s 83 



Protoplasm, staining to show conti- 

 nuity of 236 



Psocns on laurel trees in San Fran- 

 cisco 239 



Records, histological 207 



microscopical 220 



Red snow, occurrence of, C. Hallock . 42 



Resolution, limits of 2>S 



Rhizopods of fresh-water, R. Hitch- 

 cock 234 



Rocks, the microscopical studv of, J. 



S. Diller 41 



Rotifera, or wheel animalcules, the . 77 



Rotifer nests, D. S. Kellicott 20 



Rotifers, development of 236 



Royston-Pigott, G.W. , microscopical 



advances 27 



Salmon, D. E., and T. Smith, bacte- 

 rium of swine-plague 204 



Salpingceca eurystoma, sp. n. . . . . 227 

 Seaman, W. H., mounting mediums . 21 



Seaside laboratories 213 



Sections of minute organisms, cutting 137 

 Sedgwick and Wilson, celloidine in 



imbedding 229 



Shanks, S. G., mounting several ob- 

 jects under one cover 64 



measuring blood corpuscles . . .139 



Smith, Prof. H. L., mounting me- 

 dium of high refractive index . 3 

 Smith, Theobald, examination of 



drinking-water 6t 



methods of obtaining pure cul- 



tures of bacteria 124 



variability of pathogenic organ- 



isms 201 



and D. E. Salmon, bacterium of 



swine-plague 204 



Society of German naturalists .... 217 

 Spencer, an old record of . . 138, 159, 178 

 Sponges, muscle and nerve in. Von 



Lendenfeld 205 



PAGE. 



Staining tissues in microscopy, Hans 



Gierke :^ 

 Silver nitrate, 13, 31 ; chloride of 

 gold, 32, 53; perosmic acid, 

 54, 70 ; other metallic salts, 

 70; combination methods, 

 71, 97; hsematoxylin and 

 metallic salts, 98, 150: anilin 

 colors with metallic salts, 

 150. 

 and double staining vegetable 



tissues, G. S. Beatty 43 



double, animal tissues 58 



hsematoxylin, receipt for .... 217 



picric acid carmine 216 



to show continuity of protoplasm 236 



Stokes, A. C., infusoria 227 



kev to the desmids . . 109, 125, 144. 



163 



new fresh-water infusoria .... 81 



Stromhiditiofsis acuminata, n. s. . . 85 

 Ta\'lor, T. , adulteration of butter . . 79 



butter and fats and oleomargarine 169 



internal parasites in domestic 



fowls II 



Test of water purification 213 



Tetrajnitus variabilis, n. s 81 



Trachelophylltun clavaium, n. s. . . . S3 

 Tree-climbing cray-fish, C. F. Holder 210 

 Typhoid fever, micro-organisms of . 100 



Typographical errors 214 



Urceolus sabulosus, n. s 81 



Urinary casts, preserving 18 



preserving, C. P. Pengra .... 39 



Urinary deposits, preserving and 



mounting 40 



crystals 140 



Ussow, M. , a new form of fresh-water 



coelenterate 210 



Variability of pathogenic organisms, 



T. Smith 201 



Vegetable cells, vacuoles of 216 



Von Lendenfeld, muscle and nerve in 



sponges 205 



Vorce, C. M., American Society of 



Alicroscopists 161 



detection of fat in butter .... 156 



Avax as a material for microscop- 

 ical mounting 123 



Vorticella Jioridcnsis, n. s 86 



Water-bath for use in imbedding . . . 203 

 Water, biological examination of, 



Theobald Smith 61 



■ purification, test of 213 



Wax as a material for microscopical 



mounting 123 



W^ilson and Sedgwick, celloidine in 



imbedding 229 



Worms frozen in ice 209 



Zeiss, C, appochromatic objectives . 231 

 List of Illustrations : 



Portrait of Dr. W. B. Carpenter, fron- 

 tispiece. 

 I. Scoville 's photo-microscopic 



equipment 6 



