290 



INDEX 



Screens for various stains, 267 

 - White card, for light adjustment, 



10, 19, 134 

 Secondary spectrum, 51 



structure in diatoms, 255 



Section cutting, mounting, staining, 



258-260 



double staining, 261 

 Semi-apochromats, 52 

 Semi-glossy papers, 229 

 Sensitising solution for colour plates, 



270 



for transparencies, 273 



Shells, photography of, 251 

 Sliding objective changer, 31 

 Solid objects, photo of, 249 

 Solutions for light filters, 158 

 Specimens in bottles, 250 

 Spectacle lens condensers, 107 

 Spectra, Absorption. 151 

 - Diagram of, 159 



- of Radiants, 84 



Spectrum of Mercury vapour lamp, 94 



Spencer microscope, 39 



Spherical aberration, 47 



Spider, 250 



Spirillum, 242 



Spirit vapour lamp, 98 



Spirochaeta pallida, 245 



plicatilis, 242 

 Spores staining, 267 

 Spot lens, 179 

 Spotting negatives, 226 



Stage (microscope), adaptable, 27 



complete, 28 



mechanical, 27 



rotating, 27 



Ross micrometric, 27 



Zeiss photomicrographic, 41 

 Staining bacteria, 242 



- in bulk, 261 



- Counter, 261 



sections, 260 

 Stains, Aniline blue, 265 



- for bacteria, 266 

 Borax-carmine, 264 



Stains, Carbol-fuchsine, 266 



- Carmalum, 261, 264 



- Eosin, 266 

 Gram's, 266 



- Hajinatoxylin, Ehrlich's, 261, 265 



- Heidenhain's, 262, 265 



- Iodine green, 266 



- Loffler's methylene blue, 266 



- Orange G. , 266 



- Picric acid, 266 



- Safranin, 265, 

 Stand development, 226 



Microscope, 26 



Lamp, 100 

 Stems, sections of, 258 

 Stereoscopic photomicrography, 192 



Centring nosepiece for, 194, 



prints, 194 



Stops for, 194 



- twin lens microscope, 194 



two exposures, 194 



Stops, conical, for high-power 

 objectives, 181 



cylindrical, for low-power objec- 

 tives, 192 



- Davis, 181, 



for oblique illumination, 177 



- for stereoscopy, 194 



Traviss' expanding, 180 



- Wheel, 179, 180 

 Substage, 28 



centring, 29 



condenser. (See Condenser) 



- English and Continental, 44 



- fine adjustment, 28 



Fixed sleeve, 28 



- iris, 28 



Adjustment of, 146 



Lateral screw, 28 



Rack and pinion, 28 



ring as object carrier, 200 

 Summars, 79 



Sunlight as illuminant, 84 

 Surirella gemma, 178 

 Suspension of camera, 24 

 Swift's achromatic condensers, 109 



