510 



INDEX. 



Knife, Valentin's, 347 

 Kingsley, Rev. W., 

 illuminator of, 500 



Lamp, 



campMne, 498 



French, 151 



Highley's gas, 489 



reading, 149 



shade, 149 



to clean, 154 



chimney, to clean, 158 



Spencer's, 157 



spirit, 305 

 Leeson, Dr., 



goniometer of, 261 

 Legg, Mr., 



experiments of, 241 

 Leeuwenhoek, 



microscope of, 6 

 Lens, method of making, 5 



watchmaker's, 60 



dissecting, 52 



single, 64 



doublet, 65 



diamond, 66 



condensing, 122 



jewel, Sir D. Brewster's, 26 

 — Mr. Pritchard's, 27 



doublet, Divini's, 28 



Goring's, Dr., 26 



periacopic doublet, 28 



Charles's, M., 34 



Coddington's, 48 



Stephen Gray's, 9 



fluid, Stephen Gray's, 1 

 Leonard, Mr., 



condensing lens of, 124 



hood for compound body, 147 

 Lever stage, 



Alfred White's, 88 

 Lieberkuhn, 126 



to illuminate by, 199 



solar microscope of, 14 



opaque microscope of, 15 



hand microscope of, 16 



injections of, 17 



anatomical injections of, 18 

 Light, 



adjustment of, 182 



direct, 193 



oblique, 194 



polarization of, 236 

 Limpet, tongue of, 455 

 Lines, 



micrometer, value of, 218 



eve-piece micrometer, value of, 

 "220 



Lister, Mr., 



achromatic microscope of, 36 

 improvement in object-glass, 39 

 objecl^glasB, 165 



Loaded corks, 350 



Localities, 



for chara, 382 



for infusoria, 383, 393 



for wheel animalcule, 394 



Lucernal microscope, 24 



Lucida camera, 144 



M 



Maohine Cutting, 335 



Mr. Topping's, 337 

 Magnifying powers, 



Hooke's method to obtain, 227 



linear measure, 225 



superficial measure, 226 



table of, 228 

 Mammalia, 



circulation in, 372 

 Manipulation, 259 

 Marine-glue, 270, 275 

 Marshall, 



microscope of, 13 

 Martin, Benjamin, 



microscope of, 22 

 Measurement of objects, 



with micrometer eye-piece, 218 



with stage micrometer, 21'? 



obtained by camera lucida, 223 



French table of, 229 

 Membrane, basement, 442 

 Mercury biniodide, 453 

 Micrographia, 



Hooke's, 3 

 Micrometer, 209 



Adams's, 210 



cobweb, 216 



cobweb, to use, 223 



Cuff's, 22, 210 



Coventry's, 211, 229 



eye-piece, 212 



eye-piece, to use, 222 



Jackson's, 213, 229 



Martin's, B., 210 



Boss's, 212 



stage, 211 

 Micrometer lines, to find value of, 



in cobweb micrometer, 221 



in negative eye-piece micrometer 

 218 



in positive ditto, 220 



in stage micrometer, 218 

 Microscope, 



definition of, 1 



Adams's, George, 23 



