INDEX. 



329 



Humble bee, sting of, 175 

 Huyghenian eye-piece, 41 

 Hydra viridis and fusca, 1 60 

 Hydroid Zoophytes, 160 

 Hydrozoa, 160 

 Hymenoptera, 146 

 Hyposulphite of soda solution, 224 



ILLUMINATOR, Beck's vertical, 75 



Osborne's, 74 



Powell and Lealand's vertical, 75 



reflex, Wenham's, 71 



Tolles' interior, 76 



traversing substage, 69 



Wenham's diatom, 72 



white cloud, 96 



Immersion objectives, 104, 121 



paraboloid, 78 



Inch objectives, 51 

 Infusoria, 145 



mounting, 305 



Injected kidney, 192 



Injecting and staining, 259, 269 



apparatus, 269 



fluid, carmine, 269 



Prussian blue, 268 



Injections, opaque, 268 



transparent, 268 



Insecta, 147 



Insects, mounting in balsam and benzol, 

 299 



' without pressure, 303 



Intensification of negatives, 224 

 Iodine solution, 319 

 Iris diaphragm, 63 

 Isthmia enervis, 140 



J. 



JACKSON model, the, 12 

 Jackson's eye-piece micrometer, 233 

 Japan black, 322 

 Jute fibres, mounting of, 304 



K. 



KELNER'S orthoscopic eye-piece, 42 

 Kidney, injected, 192 

 Klein's quartz-plate, 242, 246 



Knives, 168, 187 



L. 



LABELS for slides, 298 



Lagena squamosa, 144 



Lamps, 91-95 



Lantern, microscope, 229 



objects for, 229 



transparencies, 227 



Lap, leaden, 196 



Larva of crane-fly, 177 



Lastrea filix mas, 142 



Lathe, 197 



Laticiferous vessels, 259 



Leaden lap, 196 



Lecanora cerina, 150 



Lecidea canescens, 151 

 Lens, 4 



aplanatic, 106 



Coddington, 5 



convex, 100 



engraver's, 4 



magnifying power of, 8 



over-corrected, 106 



plano-convex, 101 



platyscopic, 5 



pocket, 4 



spot, 77 



Stanhope, 5 



Steinheil's, 5 



under-corrected, 106 



watchmaker's, 4 



Lepidocyrtus curvicollis, in, 148 

 Lepidoptera, 146 

 Lepisma saccharina, in, 148 

 Liber- cells, staining, 259 

 Lichens, 149 



sections of, 190 



mounting, 308 



Lieberkuhns, 79 



mounting for, 296 



Life-history of organisms, 3 



slide, Botterill's, 87 



Light, refraction of, 97 



modifier, 95 



monochromatic, 96 



Smiting diaphragm, 124 

 Jmnias ceratophylli, 146 

 Liquid glue, 321 



