INDEX 
H 
Half-monitor house, cost of materials, 139 
plans, 137 
specifications, 138 
Hamburgs, distribution of, 76 
Hardening-off process, 365 
Hardiness of egg breeds, 80 
of general-purpose breeds, 89 
of meat breeds, 85 
Hatching, advantages of early, 278 
centralized, 27 
eggs, collection of, 287 
keeping, 288 
selection of, 287 
process of, 310 
records, 320 
Hay-cutter, 206 
Head, bones of, 294 
Health, importance of, 101, 271 
Heat, effect on birds, 109 
in incubator, 337 
Heater, operation of, 366 
Heavy producers, breeding from, 252 
Height of laying house, 112 
Hen compared with cow, 169 
consumption and production with, 510 
Hen’s eggs, composition of, 196 
Heredity, benefits from, 230 
definition, 229 
example of, 229 
law of, 229 
Hollow tile for incubator cellar, 329 
Home practice, value of, 6 
Hominy meal, composition of, 193 
manufacture, 187 
Hoppers, advantages of, 106 
design, 154 
self-feeding, 153 
types of, 154 
use of, 130 
Hot-air incubators, 331 
Houdans, possibilities of, 94 
House construction, standard-unit, 113 
convenience in, 106 
development of, 104 
economy in, 105 
effect of shape on cost, 113 
grading for, 124 
principles of, 104 
roofing materials, 122 
sanitation, 110 
design, features of, 105 7 
Houses, brooder, 348 
feed, 204 
for growing stock, 372 
importance of cleanliness, 497 
Houses, perimeter of, 113 
preservation of, 122 
types of, 111 
Hunterdon County, New Jersey, a great 
egg centre, 16 
Hybridizing defined, 230, 246 
example of, 231 
Hygiene, 497 
Hypoblast defined, 307 
£ 
Icing poultry, 447 
Imagination as affecting breeding, 264 
Importance of knowing actual profits, 34 
Impregnation, effect of a previous, 264 
Improvement, need of, 221 
Inbreeding defined, 246, 247 
effect on vigor, 255 
possibilities of, 248 
ways of, 247 
Incubation, advantages of artificial, 313 
of natural, 312 
artificial, 326 
cooling during, 339 
disadvantages of natural, 312 
eggs under one hen, 318 
hatching time, 345 
historical development, 326 
natural, 312 . 
record, 458 
temperature, 338 
regulation, 333 . 
testing, 344 
time required for, 321 
turning, 339 
Incubator, best place for, 335 
care of, 335 
cellar for, 329 
plans, 328 
development of, 327 
filling egg chamber, 336 
house, capacity of, 330 1 
interior arrangement, 330 
location, 331 
plans of, 328 
requirements of, 327 
ventilation, 329 
lamp, 335 
moisture for, 341 
record, 456 
selection of, 333 
ventilation of, 340 
Incubators, mammoth, 332 
types of, 331 
Infertile eggs, advantages of, 307, 437 
Infertility, causes of, 289 
