332 



INDEX. 



Photographing Amphipleura 



220 



Photo-micrography, 208 



camera for, 208, 209, 213 



correction of objectives for, 210 



drying negatives, 225 



electric light, 217 



fixing image, 225 



magnesium light, 219 



sun light, 214 



Table of amplifications, 208 



working with eye-pieces, 209 



Physcia ciliaris, 151 



Picro-carmine staining, 263 



Pine wood, section of, 1 10 



Pinnularia radiosa, 141 



viridis, 141 



Piths, stained, 259 



Pitted vessels, 259 



Plain mirrors, 98 



Plano-convex lenses, 101 



Platyscopic lens, 5 

 Pleurobrachia pileus, 160 

 Pleurosigma angulatum, 103, 118 

 Pocket lenses, 4 



microscope, 139, 140 



Podocyrtis Schomburgii, 155 

 Podura, no, 148 

 Podura-cage, 310 

 Polariscope, 238 

 Polarizing objects, list of, 248 



prism, 238, 239 



Polishing lap, 196 



Pollen, Althea rosa, 107, 158, 296 



hollyhock, 107 



Polyactis fascicularis, 144 

 Polycistina, 151, 154 

 arranged slides of, 294 

 Polyommatus argus, in, 148 

 Polypide, 155 

 Polystomella crispa, 144 

 Polyzoa, 155 

 Pond filter, 130 



scoop, 128 



Porphyrine, 151 



Positive eye-piece, Ramsden's, 42 



Postage of slides, 311 



Potash, 313, 319 



Powell & Lealand's binocular prism, 33 



Powell & Lealand's oil -immersion con- 

 denser, 68 



stand, 13 



vertical illuminator, 75 



Power, amplifying, of objectives, 53^ 



relative, of oculars, 43 



Preparation and mounting of objects, 

 271 



Preparing animal tissues, 190 



Preserving insects for dissection, 173 



zoophytes, 161 



Prism, Amici's, 73 



analysing, 239 



Nachet, 74 



Nicol's, 239 



Stephenson's binocular, 35 



Wenham's binocular, 32 



Woodward's, 73 



Pritchard's microscopic cabinet, 2 



Proboscis of blow-fly, 108 



Pteris aquilina, 142 



Ptilota, 133 



Puccinia graminis, 144 



Purifying diatoms, 139 



Pyrogallic acid and iron, 265 



developer, 221 



Q. 

 QUARTZ-PLATE, Klein's, 242 



action of Nicol prism on, 



243 



rotatory polarisation on, 242 



scale, 255 



Quekett's treatise, 2 



R. 



RALF'S liquid, 320 

 Ramsden's eye-piece micrometer, 232 



positive eye-piece, 41 



screw micrometer, 234 



Razor guards, 187 



Reade's condenser, 67 



Reagents, 312 



Real images, 6 



Recipes, 318 



Redmayne's collecting apparatus, 138 



Red ringing varnish, 323 



Reflector, neutral tint, 205 



parabolic, 79 



side, 80 



