300 
Cell contents, mucilage associated 
with raphides, tests for, 194 
mucilage, tests for, 194 
organic, 182 
starch grains, formation of, 183 
starch grains, hilum nature of, 188 
starch grains, hilum of, 185 
starch grains, mounting of, 188 
starch grains, occurrence cf, 184 
starch grains, outline of, 185 
starch grains, size of, 185 
starch grains, tests for, 188 
tannin, 196 
tannin, occurrence of, 196 
tannin, test for, 197 
volatile oil, test for, 196 
volatile oils, 196 
Cell division common to onion root, 
56 
Cell plate, 55 
Cell sap, 53 
Cell, typical, 53 
Cell wall, 53 
Chromatin, 54 
Chromatin granules, 55 
Chromatophores, 53 
Chromosomes, 55 
Closed collateral bundles of mandrake 
stem, cross-section illustration 
of, 296 
Collateral vascular bundles, 295 
Collenchyma cells, composition of 
walls, 109 
illustrations, 108 
occurring in catnip and mother- 
wort, illustrations, 107 
of ruellia stem, 235 
structure of, 106 
Compound microscope, illustration, 10 
microscope, mechanical parts of, 
7,8 
microscope of Robert Hooke, 
illustration, 8 
microscope, optical parts of, 9, 
11, 12 
microscopes, introduction, 7 
Concentric vascular bundles, 295 
Conducting tissue, introduction, 126 
Cork cells, origin of, 88 
Cortical parenchyma, conduction by, 
147 
of ruellia stem, 235 
INDEX 
Cortex, of pink root, 219 
of ruellia rhizome, 226 
of ruellia root, 221 
of ruellia stem, 235 
of spigelia rhizome, 223 
of spigelia stem, 233 
Cover glasses, 43 
illustrations, 44 
Crystal cavities, 176 
cells, storage function of, 179 
Cutting sections, 31 
Cystoliths, illustrations of, 214 
Cytoplasm, 53 
Daisies, white, powdered, description 
of, 282 
illustration of, 283 
Dissecting microscope, illustration, 5 
needles, 46 
needles, illustration, 46 
Drawing apparatus, illustration, 23 
Ectoplast, 53 
Embryo, diagnostic structures of, 
291 
Endocarp of celery fruit, 288 
Endodermal cells, illustrations of 
longitudinal sections, 119 
illustrations of cross-sections, I17 
introduction, 116 
structure of, 116, 118 
Endodermis, of klip buchu leaf, 
262 
of pink root, 219 
of ruellia root, 223 
Endosperm of celery fruit, 288 
of seeds, 291 
Epicarp of celery fruit, 285 
Epidermal cells of leaves, storage 
function of, 179 
Epidermis, surface deposits of, 62 
of herbaceous stems, _ illustra- 
tions of, 152 
of klip buchu leaf, 260 
of leaves, illustrations of, 155 ~ 
of mountain laurel, 264 
of pink root, 219 
of ruellia rhizome, 226 
of ruellia root, 221 
of ruellia stem, 235 
of seeds, 289 
of spigelia rhizome, 223 
of spigelia stem, 233 
of testa, 63 
