610 
INDEX 
All numbers refer to pages, heavy type indicating illustrations. 
420, 421; gum, 31; kernel, 114; 
range, 26; straw, 298 
Whisk brushes, 235 
Whisks, 223 
Whisky, 159 
White, ash, 259; birch, 265; birch 
oil, 297; cooperage, 2438, 270; 
mustard, 133; oak wood, 256; 
pine, 241, 270; pine wood, 250, 
251; potato, 43, 59, 60, 120, 
124, 210, 382, 416, 417; potato 
tuber, 114; walnut, 261; water 
crowfoot, 467 
Whitewood, 263; Tulip, 261 
Whorl, 342 
Whorled leaves, 342 
Wicks, 228; wickerwork, 223, 235, 
241 
Wild, black cherry, 203, 260, 263; 
carrot, 430; cotton, 227; kale, 
66, 67; lettuce, 73; red rasp- 
berry, 91 
Will, 568; in plants, 462 
Willow, 241, 243, 244, 294, 377, 
414, 475 
- Willow Family, 377, 398, 414, 415: 
poplar, 264; willow, 243, 244 
Willow Order, 377, 398, 416, 
417 
Wind-balls, 283 
Wind-breaks, 303 
Wind-carried pollen, 557 
Wind-flower, 328-356 | 
Wind-pollination, 557 
Wine, 156, 157, 248, 495 
Winged pericarp, 359 
Wings, 48, 366 
Winter Crook-neck Squash, 81, 82 
Wintergreen, 146, 148, 177, 203, 
297, 378, 379, 416, 417; oil of, 
562 
Witch-hazel, 166, 171 
Witch-hazel Family: witch-hazel, 
171 
Wood, 241, 298; ash, 298; origin, 
254; pulp, 241; structure, 249 
Wood-alcohol, 300 
ih aaa ce 205, 209, 328- 
35 
Wood-anemony, American 
American Wood-anemony) 
Wooden shoes, 263 
Woodenware, 263 
Woods, 222; true, 256 
Wood-working trades, 242 
Woody, fibers, 225, 240, 538; 
plants, 333, 352 
Wool, vegetable, 228 
Wool-weed, 480, 481, 558 
bid eB sae Family: wool-weed, 
48 
World-making an evolution, 464 
Wormwood, 159, 160, 385, 420, 
421 
Wrack Family: bladder-wrack, 
488, 489 
Wrapping for bottles, 280 
Writing-inks, 294 
Writing-paper, 224 
(see 
X yapales, Yellow-eyed Grass Or- 
er 
Yarn, 223 
Yeast, 155 
Yeast Family: yeast, 155 
Yeast Fungi, 495 
Yellow Ladies’ Slipper, 220; Y. 
Locust, 259 
Yellow-eyed Grass Order, 397 
Yew, 212, 213, 392, 393, 426, 427 
Yew Family, 392, 397, 426, 427: 
_ yew, 213 
Yokes, 244, 263 
Yoke-spore algze, evolution of, 558 
Zanzibar Copal-tree, 289, 290, 366 
Zea Mays, Maize 
Zingiber officinale, Ginger 
Zygomycetes, Pin-mold Fungi 
Zygospore, 478, 497, 511 
Zygote, 482, 512 
