IV 



INDEX. 



INDEX TO ILLUSTRATIONS. 



PAGE. 



Acme Microscope No. 3 (Fig. 8) 9 



Acme Microscope No. 2 (Fig. 29) 203 



Actinosphserium Eichornii (Figs. 11 and 



12) 41 



Aptogonium Baileyi (Fig. 6) 7 



Biological Microscope, Bulloch (Fig. 18). 87 



Bulbochsete intermedia (Fig 22, IV) 121 



Bulbochsete mirabilis (Fig. 22, II) 121 



Bulbochaete nana (Fig. 22, V) 121 



Bulbochsete rectangularis (Fig. 22, I). . . 121 



Cell for Opaque Objects (Fig. 28) 202 



Cercaria Hyalocauda (Figs. 34, 35 and 



36) ; 231, 232 



Chantransia violacea (Fig. 13) 44 



Conferva abreviata (Fig. 9, Z) 21 



Conferva floccosa (Fig. 9, A) 21 



Conferva fugacissima (Fig. 9, G) 21 



Conferva punctalis (Fig. 9, O) 21 



Culture-cell (Fig. 24) 142 



Cylindrocapsa geminella (Fig. 17) 83 



PAGE. 



Desmidium Swartzii (Fig. 7) 7 



Economic Microscope, Beck (Fig. 16). . 64 

 Histological Microscope, Crouch (Fig. 10) 25 



Illuminator, A Catoptric (Fig. 30) 204 



Illuminator for Opaque Objects under 



High Powers (Fig. 31) 305 



Injecting Apparatus (Fig. 23) 141 



Microscope, Riddell's Binocular (Figs. 



32 and 33) 221, 223 



Microspora vulgaris (Fig. 9, B) 21 



Objective, Concave Front for (Fig. 21).. 102 

 Ocular, A New Stereoscopic (Fig. 27). . 201 



Ophrydium Adse (Figs. 1 and 5) 4 



Paraboloid, Diagram for (Fig. 19) 101 - 



Paraboloid, Form of (Fig. 20) 103 , 



Slide-cutter and Grinder (Figs. 14 and- 



15) • 61 



Turn-table. The New "Congress" 



(Fig. 25) 163 



Warm-stage for the Microscope (Fig. 26). 181 



