TREES IN WINTER 



439 



Gray: 



Birch 72, 92, 386, 288 



Birch 282 



Pine 214 



Green Ash 424 



Grills 112 



Growth of Tree 31 



Grubs 150 



Guarding young trees 110 



Guards 112 



Gum : 



Black 183, 420 



Red 346 



Sour 183, 420 



Sweet 79, 80, 153, 346 



Gymnocladus : 



canadensis 380 



dioica 380 



Gypsy Moth 



151, 154, 158, 160, 161, 166 



Habit of Tree 183 



Hackberry 



46, 79, 80, 81, 153, 187, 330 



Hackmatack 222 



Hamamelis virginiana 344 



Hard : 



Maple 402 



Pine 212 



Hardy Catalpa 79, 80, 428 



Haw 360 



Hawthorn 46, 49, 53, 170, 360, 382 



Hazel, Witch 344 



Heeling in 102 



Height measurer 22, 23, 24 



Hemlock 36, 72, 236, 238 



Spruce 238 



Hickoria : 



alha 270 



glabra 272 



minima 274 



ovata 268 



Hickory 33, 46 



48, 49, 51, 66, 110, 157, 203, 328 



Big Bud 270 



Broom 272 



Elm 328 



Key to Species 203 



Pignut 272 



Shag-bark 186, 268, 270, 272 



Shell-hark 268 



Small-fruited 273 



Swamp 274 



White-heart 270 



High Schools, Tree Study in . . 25 



Hoary Alder 292 



Holly 36, 46, 396 



American 396 



European 396 



White 396 



Home, location and adaptation 70 



Honey Locust 



9, 48, 79, 81, 173, 360, 382, 388 



Shucks 382 



Hoop Ash 330, 426 



Hop Hornbeam ..46, 191, 276, 278 



Hornbeam 278 



American 100, 186, 191, 276, 278 



Hop 46, 191, 276, 278 



Seedling of 33 



Horse Plum 372 



Horse-chestnut ..38, 39, 41, 45, 79 

 80, 81, 96, 110, 153, 187, 188, 414 



Hypsometer 21, 22 



Identification of Trees 11, 183 



Ilex: 



Aquifolium 396 



Opaca 396 



Imported Elm-tree Borer 171 



Indian Bean 428 



Injuries, care of 136 



Caused by gas and smoke ..124 

 Common to shade trees ....124 



from careless driving 129 



from horse bites 129 



from improper pruning ....128 

 from improper soil conditions 132 



from overhead wires 125 



from regrading street 127 



from wind and ice 132 



Sources of 124 



Insects : 



Combatting, method of 150 



Control, preventive measures 



for 153 



Enemies of 154 



Handpicking of 151 



Leaf-eating 155, 177 



Shade tree 154 



Spraying for 151 



Sucking 166, 178 



Trapping 151 



Troubles 149 



Insecticides 174, 177 



Contact 175 



Iron Oak 300 



Ironwood 276, 278 



Ivy, Poison 394 



Jack Pine 191, 214 



Japanese Plum 374 



var. Red June 374 



Judas Tree 384 



Juglans : 



cinerea 264 



nigra 266 



Juneberry 358 



Juniper 46, 54, 222 



Common 244, 246 



Dwarf 244 



Red 246 



