460 



INDEX 



importance, propagation and cul- 

 ture of, 353, 354, 356. 



Gasoline engines, their value in ob- 

 taining a water supply, 43. 



Genistas, botanical classification, 

 characters, habitat and culture 

 of, 343, 344. 



Germination, 157 ; maturity of 

 seeds for, 156 ; moisture require- 

 ments for, 154, 155; oxygen re- 

 quired for, 155 ; temperature 

 requirements for, 155, 156 ; time 

 required for, 157. 



Gladiolus, botanical classification, 

 including good varieties of, 432, 

 433 ; characters and habitat of, 

 433 ; culture of, 434, 435 ; prop- 

 agation of, 434. 



Glass, bevel of, 79 ; distance to lap, 

 79; ground or "frosted," 121; 

 means of holding in place, 79 ; 

 method of laying, 79 ; to prevent 

 slipping of, 79. 



"Glory of Snow," 416, 417. 



Gloxinias, botanical classification, 

 characters, habitat, commercial 

 value, propagation and culture 

 of, 324, 325, 326. 



Grading, 70. 



Grafting, advantages of, 170 ; 

 "blind " wood for, 174 ; construc- 

 tion of cases for, 171 ; importa- 

 tion of manetti stock for, 171 ; 

 manipulation of case for, 175 ; 

 material for cions, 172 ; method 

 of, 174 ; preparation for, 172 ; 

 reproduction by, 170 ; treatment 

 of newly imported stock for, 171. 



Grafting case, 171, 172, 175; treat- 

 ment of plants when removed 

 from, 175 ; ventilation of, 175. 



Grape hyacinth, 417, 418. 



Green aphis, 215, 220, 259. 



Greenhouses, arranging, 46 ; build- 

 ing, 65 ; building on rented land, 

 40; cost of, 85, 86, 88; in the 

 south and west, 15 ; location in 

 suburban sections of, 14. 



Gutters, 56, 57. 



Hanging baskets, 436. 



Hardy plants adapted for forcing, 

 391 ; commercial importance of, 

 391. 



" Hare's foot" ferns, 375. 



Haustoria, 195. 



Heat, comparative merits of hot 

 water vs. steam, 94 ; controlling 

 the, 96 ; forced circulation of, 

 111; necessity for heat at night, 

 45, 117; traps for ^controlling, 

 100, 114. 



Heating, closed tank or pressure 

 system of hot water, safety valve 

 control, 1 10 ; high pressure steam, 

 115; low pressure steam with 

 gravity return, 113 ; low pressure 

 steam with steam trap, 114; 

 open tank gravity hot water, 107 ; 

 systems of, 107. 



Heating pipes, arrangement of, 98, 

 100, 109, 113, 114; arrangement 

 for different crops, 101 ; size of, 

 100, 109. 



Herbaceous plants for forcing, list 

 of, 398 ; preparation of, 399. 



Holly ferns, 372. 



Hotbeds, amount and character 

 of manure necessary for, 129 ; 

 banking, 130; cost of concrete 

 for, 62 ; location and construc- 

 tion of, 58, 60 ; materials for 

 building, 60, 62; method of 

 heating, 58, 60 ; preparation of 

 manure for, 129, 130 ; ventilat- 

 ing, 130; watering, 130. 



Humus, 178. 



Hyacinths, botanical classification, 

 characters, habitat, commercial 

 importance and indoor culture 

 of, 409; character of beds best 

 suited for culture of outdoor, 411; 

 mulching, 412 ; outdoor planting 

 of, 411, 412; species best suited 

 for outdoor culture of, 409, 411. 



Hydrangeas, botanical classifica- 

 tion, characters, commercial im- 

 portance, propagation and cul- 

 ture of, 340, 341, 342. 



