INDEX 



243 



Boot cambium, *82, 161 



— cap, 79, *116 



— cell contents, 162 



— cork, *82, 158 



— endodermis, *78, 79, 155 



— epidermis, *78, 79, 152 



— hairs, 79, 113, *116 



— hypodermis, *78, 79, 154 



— medullary rays, 80, *82, 161 



— phellogen, 81, *82, 160 



— phloem bundles, 80, 155, 160 



— pith, *78, 80, 157 



— structures, 152, *153, 158, 



*159 



— tissues, primary, 77, 151, *153 

 , secondary, 80, 158, *159 



— xylem bundles, *78, 80, *82, 



156, 160 

 Bosette crystals, 146, *149 

 Rotary microtome, 10, *11 



S 



Saturation stains, 66 

 Scalariform ducts, 121, *123 

 Schizogenous cavities, 137, *138 

 Schlerenchymatic tissues, 108 

 Schultze 's mixture, 228 

 Schweitzer's reagent, 226 

 Secondary periderm, 84, *102 



— phellogen, 84, *102, 160 



— root tissues, 80, *82, 158 



— stem tissues, *82, 83, 169 

 Secreting cavities, 137, *138 



— cells, 139, *139 

 Section cutting, 7 

 — , cross-, 7 



— , longitudinal, 7 

 — , radial, 7 

 — , tangential, 7 

 — , transverse, 7 

 Sectioning methods, 2, 7 



Seed, cell contents, 212 



— , embryo, 206 



— , endosperm, 207, 211 



— , epidermis, 92, *93, 207, *208, 



209, *210 

 — , inner epidermis, 207, *208, 



209, *210 

 — , perisperm, 206 



— structures, 206, *208, *210 

 — ,tegmen, 207, *208, 209, "210. 

 — , testa, 92, *93, 207, *208, 209, 



*210 

 Selenite plates, 221 

 Sepals, 192 



Sessile glandular hairs, 99, *100 

 Sharpening microtome knives, 



10 

 Sieve plates, 122, *125 



, structure of, 122 



Sieve tubes, 122, *125 

 , contents, 124 



— — , derivation of, 80 



, direction of conduction, 



124 



, structure of, 122 



Silica, 65, 148 

 Simple hairs, 95, *96 



— microscope, 31, *31 



— starch grains, 135, *145 

 Sketching, errors, 54, *55, 56' 

 Sliding microtome, 8, *9, *11 

 Specimen block, 6 

 Specimens, clearing, 4 



— , cutting, 7 



— , dehydration, 3 



— , embedding, 6 



— , fixation, 2 



— , noninfiltrated, 15 



— , mounting, 19 



— , sectioning, 7 



Spectrum, 30 



Spherical aberration, 28, *29 



