610 



INDEX 



All numbers refer to pages, heavy type indicating illustrations. 



420, 421; gum, 31; kernel, 114; 



range, 26; straw, 298 

 Whisk brushes, 23.5 

 Whisks, 223 . 

 Whisky, 159 

 ^Vhite, ash, 259; birch, 265; birch 



oil, 297; cooperage, 243, 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, 201; water 



crowfoot, 467 

 Whitewood, 263; Tulip, 261 

 Whorl, 342 

 Whorled leaves, 342 

 Wicks, 228; wickerwork, 223, 235, 



241 

 Wild, black cherry, 203, 260, 2G3; 



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 

 WiniJ-flower, .328-356 

 Wind-pollination, 557 

 Wine, 156, 157, 243, 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, 29S; origin, 



254; pulp, 241; .structure, 249 



Wood-alcohol, 300 

 Wood-anemony, 205, 209, 328- 



356 

 Wood-anemony, American (see 



American Wood-anemony) 

 Wooden shoes, 263 

 Woodenware, 263 

 Woods, 222; true, 2.5G 

 Wood-working trades, 242 

 Woody, fibers, 225, 240, 538; 



plants, 333, 352 

 Wool, vegetable, 228 

 Wool-weed, 4S0, 481, 558 

 Wool-weed Family: wool- weed, 



481 

 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 



Xyridales, Yellow-eyed Grass Or- 

 der 



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, 1392, 393, 426, 427 

 Yew Family, 392, 397, 426, 427: 



yew, 213 

 Yokes, 244, 263 

 Yoke-spore algse, evolution of, 558 



Zanzibar Copal-tree, 289, 290, 366 

 Zea Mays, Maize 

 Zingiber officinale. Ginger 

 Zygomycetes, Pin-mold Fungi 

 Zygospore, 478, 497, 511 

 Zygote, 4S2, 512 



