352 PRINCIPLES OF BIOLOGICAL MICROTECHNIQUE 



Lauterborn, 281 



Lazarow, 292 



Lazarus, 262 



Leathes, 114 



Lecanora tartarea, 185 



lecanoric acid, 185 



lecithin, 94, 114, 115, 285, 290 



Leeuwenhoek, 155 



Lehmann, 129, 130 



Leishman, 267 



leucine, 192 



leucobases, 163, 286, 287, 288 



leucocytes, dyeing of, 230, 234, 277 



leuco-pararosaniline, 163 



'levelling' dyes, 235 



Levene, 205 



Lewis, 281 



Lewitsky, 140, 141, 143, 146, 147, 

 149 



light, effect on fixation by potas- 

 sium dichromate, 128, 132 

 effect on osmium tetroxide, 119 

 effect on tissues fixed by chro- 

 mium trioxide, no 



light green, 165, 170, 172 



lignin, 131 



Lillie, 270 



lipid globules, reactions of fixatives 

 v^ith, 95, 98, 103, 117, 131, 136 

 vital colouring of, 281, 291 



lipids, dispersal in ground cyto- 

 plasm, 130 

 reactions of fixatives with, 94, 

 loi, 107, 113, 121, 128, 125 



Lison, 129, 195, 245, 247, 252, 253, 

 255> 259, 300, 301, 306 



lithium carbonate, 98 

 carminate, 190 



litmus, 186 



liver, shrinkage by fixatives, 76 



logwood, 173 



lyddite, 96 



lymphocytes, 265 



lysine, 44, 48, 53, 59, 60, 63, 190, 

 192, 200, 239 



lysochrome, 298 



MacNeal, 265, 270 

 madder, 276 



magenta, 160 



Mair, 107 



malachite green, 168, 170 



malarial parasite, 264 



Mallory, 232, 237, 239 



Mann, viii, 32, 143, 149, 166, 179, 



187, 236 

 Marston, 291 

 Mastzellen, 193, 244, 245, 246, 255, 



267 

 mauveine, 171, 280 

 Maximov, 143 

 May, 265 



Mayer, 103, 166, 177, 220 

 Mayzel, 106, 127 

 Medawar, 37, 40, 67 

 mercaptide, 52 



mercuric/acetic, 141, 143, 148 

 mercuric chloride, 24, 32, 51, 52, 

 68, 76, 78, 79, 81, 83, 87, 99, 

 142, 150, 203, 206, 277, 316 

 mercuric potassium iodide, 54 

 metachromasy, 180, 243 



'negative', 259 



of acid dyes, 259 



of basic dyes, 245 



vital, 281, 287, 291 

 metachrome yellow RA, 183, 197 

 metaphosphates, 246, 281 

 methaemoglobin, 104, 113 

 methanol as fixative, 24, 25, 32, 46, 

 267 



as solvent for blood-dyes, 265, 

 267, 269 

 methyl blue, 165, 170, 171, 236, 



237 

 methyl blue/eosin, 179, 236 

 methyl green, 170, 171, 253, 262, 



263 

 methyl orange, 183, 285 

 methyl violet, 168, 170, 244, 248, 



280, 285 

 'Methylefiazur\ 268 

 methylene blue, 165, 170, 171, 195, 



223, 251, 264, 268, 274, 278, 



286, 287, 288, 290, 294 

 methylene bridge, 59, 60, 113 

 methylene green, 171, 189, 230 

 'methylene red', 267 



