14 DEPARTMENT OF AGEICULTUEE BULS. 801-S23. 



Bulletin 



No. Page. 



Pediculoides ventricosus, enemy of horse-bean weevil , note 807 14 



Pennsylvania — 



oats, yields of several varieties, experiments 823 10-11 



•peach growing, production, districts, and varieties 806] A -! o^^^l 



pear industry, varieties, etc 822 7 



Pepper tree, description, use as street tree, and regions adapted to. 816 17, 40 



Persian insect powder, introduction and consumption 824 3-4 



See also insect powder. 



Phillips, W. J., bulletin on "Studies on the life history and habits 



of the jointworm flies of the genus Harmolita (Isosoma), with 



recommendations for control " ! 808 1-27 



Pickling — 



olive, methods and operations, and chemical changes 803 5-7, 19-24 



olives, and ripening, in California, chemical study, bulletin by 



R. W. Hilts and R. S. Hollingshead 803 1-24 



Pigs— 



Ascaris pneumonia, cause, infection, etc 817 28-29 



infestation with Ascaris, experiments, details 817 37-42 



infestation with Ascaris suum, investigation '. . . 817 25-27 



Pine — 



jack — 



bulletin by William Dent Sterrett 820 1-47 



characteristics, range, and requirements 820 2-7 



enemies 820 20-21 



form, growth rate and reproduction 820 7-20 



management in forests 820 28-33 



planting and sowing, costs and methods 820 31-32 



stumpage values. ._ 820 27-28 



thinning stands, directions. , 820 20 



utilization.. '. 820 23-26 



lodgepole, similarity to jack pine, range, etc., note 820 2 



Pink yeast. iSee Yeast, pink. 



Pinics contorta, similarity to jack pine, range, etc., note. 820 2 



Pinus divaricata. See Pine, Jack. 



Plants — 



r 14-15, 21, 



22 23 



species forming peat deposits 802 ^g 90' 03' 



i ' "34-37 



use as adulterants of insect powder, notes and list 824 16-20 



f 40-41, 



Platforms, warehouse construction and materials 80l{ 49-50, 



I 58-59 

 Plowing — 



day's labor, New York and Illinois, comparison 814 30-31 



day's work, Illinois, gang, sulky, and tractor, comparison 814 4-8 



Plows, day's work by kinds in Illinois, by size of team, etc 814 4-8 



Pneumonia, Ascaris as cause, investigations 817 27-28 



Poisoning, insect powder, instances 824 14-16 



Polvere de Pulisi. See Insect flowers. 

 PoMERoy, C. S., A. D. Shamel — 



and L. B. Scott, bulletin on "Frost protection in lemon 



orchards" 821 1-30 



L. B. Scott and C. L. Dyer, bulletin on " Citrus-fruit improve- 

 ment: A study of bud variation in the Eureka lemon" 813 1-88 



L. B. Scott and C. L. Dyer, bulletin on " Citrus-fruit improve- 

 ment: A study of bud variation in the Lisbon lemon" 815 1-70 



Poplar, species, descriptions, use as street tree, and regions adapted 



, qtJ 18,19, 



Posts, jack pine, value, and preservative treatment 820 26 



Powder, insect. See Insect powder. 



Powders, insect, chemical analyses and comparisons 824 40 



Princess pine. See Pine, Jack. 



