530 
Inheritance as affecting breeding, 226 
definition, 226 
genotype conception of, 234/ 
of disease, 227 
of fecundity, 233 
statistical conception of, 233 
Instruction, collegiate, 2 
by correspondence, 3 
demand for, 1 
diversity of, 1 
elementary, 2 
need for, 1 
secondary, 2 
types of, 2 
Internal parasites, 510 
Intestinal worms, 511 
Intestines, location and functions, 297 
Inventory making, 458 
record, 455 
Investment in buildings, 60 
in equipment, 60 
poultry keeping as an, 24 
Ireland, poultry farming in, 36 
Italy, poultry farming in, 38 
J 
Journals, list of, 520 
Judges, selection of, 485 
Judging, 486 
by comparison, 487 
by scoring, 488 
methods of, 487 
objects of, 486 
principles of, 487 
Jungle fowl, description of, 63 
K 
Kaffir corn, 192 
Key-word is system, 62 
Killing, chapter on, 403-421 
knife for, 412 
methods of, 409 
preparation for, 409 
L 
Labor, amount of, 60 
economy of, 52 
records, 461 
Labor-saving devices, 60 
Laboratory practice, methods of, 4 
need of, 4 
Lady Cornell, performance of, 259 
Land contour, 46 
form of capital, 59 
ownership vs. rental, 59 
required, 28 
shape of, 50 
INDEX 
Land, size or area, 50 
Langshan, origin, 72 
Law of atavism, 240 
of correlation, 241 
of inheritance, 229 
of variation, 235 
Lawn clippings, 198 
Laws of breeding, 229 
Lay bones, 294 
Laying houses, capacity of, 108 
doors, 119 
features of design, 105 
floors, 117 
foundations, 116 
framing, 118 
height of, 112 
materials for, 111 
moisture in, 107 
multiple-unit, 128 
practical types, 128 
roofs, 114 
shapes, 112 
size, 110 
standard-unit, 115 
sunlight, 106 
ventilation, 108 
walls and partitions, 118 
windows and curtains, 120 
rations, California, 219 
Cornell, 218 
New Jersey, 216 
stock, care of future, 269 
management of, 266 
summer management, 274 
winter management, 270 
Leading poultry States, 10 
Learning poultry business, 57 
Levelling board, use of, 124 
Leg banding, importance of, 324, 454 
Leghorns, origin of, 73 
performance of, 81 
Legs, description of, 293 
Legumes, value and usage, 198 
Lettuce, 201 
Lice, body, 507 
Like begets like, meaning of, 229 
Lime in droppings, 449 
sources of, 185 
uses of, 185 
Limitation of sex, 243 
Line-breeding, advantages of, 248 
chart for, 249 
defined, 248 
for eggs, 253 
Linseed meal, composition of, 193 
Litter, 272 
