208 INDEX. 



PAGE 



Riestein, . . . . . . . -^ - 170 



L. 



Lenses, different forms and effects of, . . 22 



simple mode of making, . . . .28 



imperfections in, ..... 29 



Lewenhoeck, his discoveries, . . . . .16 



Lieberkuhn, his anatomical researches, . . . 17 



concave reflector, so called, . . .46 



Lamp-black cement, ...... 61 



Lichens and fungi, ...... 77 



Loaded corks, . . . . . . 120 



Lepisma saccharina, . . . . . .115 



M. 



Malpighi, microscopic researches of, . . . [15 



Modern observers, . . . . . .19 



Medico-legal inquiries with the microscope, . . 21 



Micrometer eye-piece, ...... 35 



stage, ...... 48 



Magnifying powers, hints respecting, . . . .51 



table of, . . . .; 23 



to obtain the power of a compound micro- 

 scope, . . . . .48 



Mirror, use of the, . . . . . * 52 



Management of the light, . . . . ,52 



Mounting transparent objects, .... 55 



in the dry way, . . 55, 56, 63 



in fluid, . . . 58 



in balsam, . . . 61 



Marine glue, . . .. . . .1 j&^ 60 



Mounting cellular structures, .... y. 62 



opaque objects, ..... 64 



crystals for polarized light, . . . 66, 194 



Mosses, . . . . . , * ; 76 



