328 



INDEX. 



EARLY objectives, Ross and Spencer, 



46 



Echinodermata, 141 

 Echinus spine, cutting sections of, 



200 



section of, 112 



Electric light, 217 



battery for, 218 



Elimination of air from fluid mounts, 



304 



Engraver's lenses, 4 

 Epidermis staining, 259 

 Erector, 59 



table of amplifications, 166 

 Ether, 316 

 Euchlanis dilata, 146 

 Euglena viridis, 134 

 Extraordinary ray, 238 

 Eye-pieces or oculars, 9, 40, 54 

 Eye-piece, Huyghenian, 40 



Kelner's orthoscopic, 42 



Ramsden's positive, 41 

 Tolles' binocular, 33 



F. 



FERNS, 142 



collecting apparatus for, 142 

 Ferrous oxalate development, 222 

 Fine adjustment, 212 

 Finishing slides, 292 



varnishes, 323 



Fixing solution, 224 

 negatives, 225 

 Flatness of field, 103, 112 

 Floscularia cornuta, 146 

 Flustra foliacea, 157 

 Focus, depth of, 114 

 Focussing glass, artificial, 21 1 



in photomicrography, 21 1 



Foraminifera, 143 



arranged slides of, 294 



Forceps, dissecting, 170 

 mineral, 82 



stage, 8 1 



Fossil fungi, 2OI 

 Freedom from distortion, 112 

 Freezing microtome, 194 

 French polish, 322 



Frog's lung, section of, 115 

 Fungi, 144 

 fossil, 201 



G. 



GAMMARUS PULEX, 136 



Gasoline, 317 



Glass crystallites, 152 



slides or slips, 97, 273 



rough edges, 273 



with ledge, 88 



Glycerine, 305, 312, 317 



and acetic acid, 320 



and gum, 320 



Glycerine- jelly, 320 



mounting objects in, 306 



Goadby's fluid, 319 

 Gold size, 323 



black, 323 



cells, 284 



Goring's treatise, 2 

 Graduating diaphragm, 63 

 Grammatophora marina, 141 

 Green ringing varnish, 323 

 Griffithsia, 133 

 Ground glass, artificial, 211 

 Guaiacum varnish, 321 

 Guano, 290 



Gum and glycerine, 320 

 Gum water, 319 

 Gyrosigma angulatum, 118 

 formosum, 117 



H. 



HABITATS of diatoms, 137 

 Hairs, stained, 259 

 Hardening agents, 313 



animal tissues, 191 



Hartnack's objectives, 54 

 Heliostat, 215 



Hoggan's section-cutting machine, 201 

 Hollyhock, pollen of, 107 

 Homogeneous - immersion objectives, 



121 



Horse-chestnut stem, section of, 108 

 Hot-air chamber, 284 

 How to collect mosses, 154 

 Human liver, section of, 115, 117 

 muscle with T. spiralis, 193 



