240 



INDEX 



Medullary rays, in tangential sec- 

 tion, 179, *181 



, — transverse section, 179, 



*180 



, of barks, *172, *173, 176 



,— roots, *159, 161 



,— woods, 179, *180, *181 



, origin of, 80, 124 



, walls of, 124 



Membranous tissues, 88, 184 



Mercuric chloride solution, 2, 228 



Mercuric potassium iodide solu- 

 tion, 227 



Meristematic tissues, 77 



Mesocarp, 198 



Mesophyll, *185, *186, 188 



Methods for sectioning, 1 



Metric objectives, 36 



Microcrystals, 146, *149 



Micrometers, filar, *216, 217 



— , ocular, 214 



— , stage, 214 



— , standardization of, 215 



Micromillimeter, 217 



Micron, 217 



Microphotographic apparatus, 52, 

 *53 



Microscope, compound, 33, *42 



— , dissecting, *31, *32, 32 



— , formation of images by, *34 



— , lamps, 222, *222 



— , mechanical parts, 41, *42 



— , optical parts, 35, *42 



— , optics of, *34 



— , simple, 31, *31, *32 



Microtome, hand, 7, 8, *8, *9 



— , knives, 10 



— , razor, 7 



— , rotary, 8, *11 



— sections, 8 



— sliding, 8, *9, *11 

 — , technic, 12 



Millon's reagent, 228 

 Mirror, 39, *42 

 Mitosis, 74, *75 

 Molds for paraffin, 6, *6 

 Monoeotyledonous rhizomes, *165, 

 183 



— roots, 151, *153 



— stems, 163, *165 

 Mounting in Canada balsam, 23 

 glycerin jelly, 21 



— media, 20 



— of specimens, 19 

 Mucilage cells, *139, 148, 209 

 Multicellular hairs, 95, *96, *97, 



*98 



— organisms, 70 

 Multiseriate hairs, 95, *97, *98 



N 

 Neighboring cells, *116, 117 

 Nicol prisms, 220 

 Nonglandular hairs, 94, *96, *97, 



*98 

 Noninfiltrated specimens, 15 

 Nonprotoplasmie cell contents, 73 

 Nosepiece, *42, 43 

 Nucleoli, *71, 72 

 Nucleus, *71, 72 

 Numerical aperture, 38 



■, table of, 230 



Nutrients, manufacture of, 132 



O 



Object clamp, 8 



Objectives, *42 



— , construction, 35 



— , correction in, 48 



— , diameter of field, 230 



— , immersion, 37 



— , indication of power, 35 



— , magnifications, 230 



— , numerical aperture of, 38, 230 



