802 



INDEX. 



Sexual generation, 298 



spore, 298 

 Shaddock, 584 

 Shea butter, 212, 659 

 Sheep laurel, 648 



sorrel, 524 



Shepherd's purse, 439, 554 

 Shield fern, 437 

 Shikimi, 540 

 Shoot, 299 



aerial, 329 



axis, 299 



creeping, 304 



epigeous, 321, 322 



hypogeous, 321, 325 



overground, 321 



subterranean, 329 



underground, 321 



undeveloped, 321 

 Shorea, 621 

 Shoyu, 577 

 Shrubs, 329 

 Sida, 611 

 Siejas, 519 



Sierra Leone copal, 574 

 Sieve, 276 

 Sigillaria, 100 

 Silene, hairs in, 282 

 Silica, 202 



forms of, 1 88 

 Silique, 420, 459 

 Silk, 269 



dye, 625 

 Silkweed, 437 

 Silkworm, food, 517 

 Silphium, 723 

 Silver-leaf poplar, 508 

 Simaba, 459 

 Simaruba, 586 

 Simarubaceae, 585 

 Simple leaf, 348 

 Sinalbin, 169, 170 

 Sinapis, 459. 553 



germination of, 299 

 Sindor balsam, 621 

 Sinensis-e, 459 

 Sinigrin, 169, 170 

 Sinuate, 356 

 Sisal fiber, 269 

 Sisymbrium, 459, 553 

 Skullcap, 458, 673 

 Skunk cabbage, 478, 480 

 Sleep movements, 361 

 Slime molds, 2 

 Sloanea, 609 

 Small nettle, 517 



Solomon's seal, 483 

 Smartweed, 448 

 Smilacina, 484 

 Smilax, 459, 485 



species of, 487 

 Smut, 461 



corn, 67 

 Snakehead, 441 

 Snakeroot, 459 



Snakeroot, black, 458. 532 



Canada, 520 



Virginia, 520 

 Sneeze-weed, 447, 723 

 Snow-ball, 705 

 Snow berry, 460, 707 

 Soap bark, 564, 565 



berry family, 602 



plants, 171 

 Soapwort, 458, 520 

 Socotrinus-a-um, 459 

 Soda, plants yielding, 530 

 Sodium in seaweeds, 28 

 Soft galls, 334 

 Soil acidity, 249 



bacterium, 307 



organic constituents of, 



250 



Soja beans, 199 

 Solanaceae, 683 



flowers of, 385 

 Solanidine, 688 

 Solanine, 172, 684 

 Solanum, 385, 459, 684 



fruit, 412 



Solidago, 459, 521, 722, 726 

 Solomon's seal, 456 

 Solution, Scale's carmine, 

 760 



Bohmer's haematoxylin, 

 760 



chloral-iodine, 761 



chlor-zinc-iodine, 760 



copper acetate, 761 



Delafield's hsematoxylin, 

 760 



Grenadier's borax-car- 

 mine, 760 



Gienacher's haematoxy- 

 lin, 760 



Hoyer's picro-carmine,76o 



iodine and potassium io- 

 dide, 761 



iron, 761 



phloroglucin. 761 



Schulze's macerating, 761 

 Somnifer-a-um, 459 

 Sorbile, 459 

 Sorbilis-e, 459 

 Sorbit, 563 

 Sorbus, 459, 562 

 Sorghum, 459, 467 



juice, percentage of sugar 



in, 157 

 Sorosis, 420 

 Sorrel, field, 524 



sheep, 524, 525 

 Southernwood, 434 

 Soy, 577 

 Spadix, 394- 475 

 Spanish licorice, 568 



moss. 481 

 Sparganiaceae, 463 

 Sparganium, 464 

 Spathe, 394. 478 



Spathiflorae, 475 



Spawn, 56 



Spearmint, 384, 676, 678 



plant of, 326 



Special reagents, 755, 761 

 Specimens, mounting of, 762 

 Spectroscope, 764, 765 

 Speedwell, 462 

 Sperm, 5 



Spermophytes, 100 

 Sphaerites, 192, 678 

 Sphaerobacteria, 13 

 Sphagnum, 84, 85 

 Sphere crystals, 678 

 Spicatus-a-um, 459 

 Spice bush, 439, 544 

 Spiderwort, 461, 480 

 Spigelia, 459, 661 



tracheae of, 274 

 Spignel, 452 

 Spike, 394 



oil, 679 



Spikelet, 394. 469 

 Spikenard, 453 

 Spilanthes, 724 

 Spilanthin, 724 

 Spinach, 527 



protein in, 199 



sugar in, 157 

 Spinacia, 527 

 Spindle tree, 445 

 Spinose, 354 

 Spiraea, 459, 564 

 Spiral, thickening, develop- 

 ment of, 272 

 Spirogyra, 18 

 Spleenwort, 437 

 Sporangia, 375 

 Sporangium, 4 

 Spores, 3 



asexual, 4, 298 



sexual, 4, 298 



staining of, 71 



swarm, 5 

 Sporidia, 66 

 Sporobolus, 467 

 Sporogonium, 79 

 Sporophylls, 375 

 Sporophyte, 75 



embryo, 298 

 Spring beauty, 531 

 Spruce, 109, 455 



beer, 119 



black, 112 



Douglas, 114 



Norway, 119 



pine, 112 



white, tannin in, 206 

 Spurge, 445, 500, 590 

 Squarrosus-a-um, 459 

 Squash, 443 

 Squaw-root, 695, 696 

 Squaw weed, 459 

 Squill, 458, 461, 487 

 Staff tree, 440, 600 



