INDEX 



423 



Olive, 23, 308. 



Olive knot, 245*. 



Onion, 90, 323. 



Onion thrips, 218. 



Openings in seed, 4*. 



Orange, 135*; blue mold of, 229; 



brown rot of , x 232 ; puffy, 249; 



red scale of, 217 ; white fly of, 214. 

 Orange orchard, 306, 307*. 

 Orchard fruits, 300-316. 

 Orchard grass, 284. 

 Ochrus pea, 288. 

 Oregon, 18, 23, 24, 25, 26, 29, 30, 33, 



64, 146, 148, 162, 280, 284, 285, 



287, 297, 298, 302, 306, 316, 326, 



329. 



Oregon pine, 340*. 

 Oriental fowl, 400*. 

 Overstocking, 40, 283. 

 Ovules, 92. 

 Owls, 225. 

 Oxalic acid, 321. 

 Oxygen, 57, 85, 364, 365. 



Pacific Coast, 28, 152, 324. 



Pacific Slope, 24, 283, 291, 397. 



Palm scale, 217. 



Palouse Country, 33. 



Pancreas, 355. 



Parasites of insects, 224 ; of scale in- 

 sects, 217. 



Paris green, 183, 184, 210. 



Parsley, 332. 



Parsnip, 323. 



Passion flower, 92. 



Pasteurizing, 261, 389. 



Pasture land, 40*. 



Pea, 71, 126, 144*, 146, 280; mildew 

 of, 235 ; square pod, 142*. 



Peach, 302; brown rot of, 234; 

 leaf curl of, 246 ; mildew of, 235 ; 

 shot-hole fungus of, 241; split 

 pit of, 247. 



Peach blight 241, 242*. 



Peach-tree borer, 190, 191*, 192*. 



Peach worm, 191*, 192*. 



Peanut, 84, 281. 



Pear, 243. 



Pear blight, 243*. 



Pear scab, 246*. 



Peat bogs, 26. 



Pecan nut, 315. 



Pekin duck, 405. 



Peppermint, 332. 



Peppers, 324. 



Pepsin, 355. 



Percheron horse, 380. 



Perfumes, 333. 



Persia, 285, 329. 



Persian cat, 401. 



Peru, 324. 



Petroleum for poisoning weeds, 166. 



Phosphate slag, 145. 



Phosphoric acid, 57, 126, 143. 



Phosphorite rocks, 145. 



Phosphorus, 122. 



Phylloxera, 213, 214, 221, 312. 



Pieplant, 321. 



Pigeon, 405. 



Pigweeds, 167*. 



Pimpernel, 169. 



Plantain, 171*. 



Plant ashes, 57. 



Plant breeding, 106-113. 



Plant food, in soil water, 55; in 

 water, 57. 



Plant lice, 210-213, 221. 



Plants, diseases of, 227-249; im- 

 provement of, 106-113. 



Pleurisy, 368. 



Plow, breast, 62*; disk, 66*; primi- 

 tive, 61*, 62*. 



Plowing, 60, 61*, 62*, 64*; deep, 42; 

 of hillsides, 38; shallow, 127. 



Plows, 65*. 



Plowsole, 64*, 65. 



Plum, 108*, 109*; brown rot of, 234; 

 shot-hole fungus of, 243 ; stoneless, 

 110*. 



Plum aphis, 212. 



Plumcot, 110. 



Plum curculio, 196. 



Plum weevil, 196. 



Pneumonia, 368. 



Poison chickweed, 170. 



Poison darnel, 179. 



Poisoned bait, 224. 



Poison hemlock, 182. 



