II^DEX. 13 



Bulletin Page. 



Oxidation— No. 



manganese, various crops, neutral conditions 441 9-11 



manganese-treated and check plats, various crops, 



acid conditions 441 5-6. 12 



Oxycoccus macrocarpus. See False blossom. 



Packing, apples, for market, practices in Wenatchee 

 Valley, Wash 446 28-30 



Palm, dende, occurrence, growth habits, fruit, and uses 445 24-25 



Papaya, occurrence in Bahia, description, uses, and value- 445 18 



Parasites, potato-tuber moth, list, description, habits 



and work 427 32-47 



Pastures, range, destruction by range caterpillar in New 



Mexico 443 4 



Pear — 



leaf-worm — 



bulletin by R. L. Nougaret, W. M. Davidson, 



and E. J. Newcomer 438 1-24 



See also Leaf-worm, pear, 

 "of the campo," occurrence, description and char- 

 acteristics , 445 32 



orchards — 



Pecos Valley, N. Mex., danger from codling moth, 



experiments and investigations 429 1-90 



treatment for insect pests, experiments 438 ' 19-22 



sawfly. See Leaf-worm, pear. 



trees, injury by leaf-worm, nature ^ 438 3-4 



Pediciilonles sp., enemy of desert corn flea-beetle 436 17 



Pera do campo, occurrence, description and char- 

 acteristics 445 32 



Perfumery, manufacture fi-om lemon-grass oil, notes 442 1, 11 



Peridermium harknessii, injury to sugar pine 426 5 



Persea aniericana, occurrence in Bahia. etc 445 18 



Phthorimaea opercideUa. See Moth, potato-tuber. 



Phyllantluis acida, occurrence in Bahia, etc 445 18 



Picking applies, management, operations, and cost in 



Wentachee Valley, Wash : 446 27 



" Pickled brood " — 



bees, notes 431 4-6 



See also Sacbrood. 

 Pine — 



lumbering in sugar and yellow pine region of Cali- 

 fornia, bulletin by Swift Berry 440 1-99 



sugar — 



age, growth, and yield 426 24-30 



altitude and climate of range-. 426 2-3 



appearance and structure of wood, compari- 

 sons, etc 426 10-12 



bulletin by Louis T. Larsen and T. D. Wood- 

 bury 426 1-40 



diameter and volume growth, based on age 426 26-28 



economic importance 426 1-2 



geographical and commercial range 426 2-3 



grades 426 40 



habits, root system, bark, leaves, flowers, and 



seed 426 3-4 



heiglit growth; bfise<l on age 426 24-26 



logging and milling 426 12-16 



lumber gi-ados. comparison with yellow pine 



lumber, California pine region 440 12-13 



market demands and uses 426 20-22 



Iireservative treatment, note 426 12 



size, longevity, susceptibility to injury and 



dlsea.se 426 4-7 



species, moisture, soil, and light requirements 426 7-S 



