INDEX, 97 



Page. 



Peat, mixture, experiments with roses, alfalfa, and blueberries 15-17 



for potting plants 25, 52, 54, 59-62 



of the bog type, suitability for blueberry culture 31-32 



pure, largest plants grown by use 69 



suitable for blueberry, sources 32-35 



upland, definition 34 



used in pot cultures, discussion 52, 54, 56, 60-62 



water. See Water, peat. 

 Peaty soils. See Soil^ peaty. 

 Peculiarities of blueberry. See Blueberry, peculiarities. 



Peeling, bark of blueberry 84 



Penicillium glaucum, nitrogen fixation 49 



Pennsylvania, blueberries in Boston market 12 



Phenolphthalein, use in testing soil acidity 22, 26-27 



Phoma, occurrence on roots of plants related to the blueberry 49-50 



Physcomitrium immersum, occurrence on alkaline leaf mold 30 



Physiological dryness. See Dryness, physiological. 



Picking, methods in use with blueberry 13-14 



Pine branches. See Branches, pine. 



sandy woods, presence of peat suitable to blueberry 32, 34-35 



Pitcher plants. See Plants, pitcher. 



Pith of blueberry twigs gorged with starch 76 



Plain, Atlantic Coastal, occurrence of blueberries and related plants 30, 37 



Plant, parent, of cultivated seedlings 80-82 



Plants, bog, nitrogen assimilation, methods 50 



occurrence on sandy uplands, causes 35 



preservation from decay, causes 31-32 



dormant, erratic starting when wintered indoors 75-76 



use in field plantings 88 



heath, repotting directions 70 



outdoor, compared with indoor plants 74-75 



pitcher, insect food for supply of nitrogen 50 



Plumpness, importance as market feature 12 



Plunging, use of method 15, 65-67, 67-68, 68-70 



Poisonous character of acid soils. See Soil, acid. 



Pollination, blueberry 76-78, 82 



Polycodium stamineum, reproduction by rootstock cuttings 86 



Pot culture. See Culture, pot. 



Pots, glass, use in blueberry experiments 14, 15 



plunging, advantages 15, 65-67, 67-68, 68-70 



thumb, use for seedlings, comparison with flats 60 



Potting, method with seedlings of five months 59-62 



Price of blueberries 12, 81 



Propagation, blueberry, discussion of methods 83-86 



Pruning blueberry, relation to method of laying down buds 71-72 



Purpling of blueberry leaves, occurrence, causes, etc 17, 25, 28, 29, 56-57, 60-61, 87 



Rake, use for picking blueberry 13 



Rays, medullary, gorged with starch in blueberry twigs 76 



Red spider. See Spider, red. 



Repotting, in spring 67-68, 70 



See also Transplanting. 

 Resting spores. See Spores, resting. 



Rhode Island, experiments in blueberry culture I ] 



Ripening, fruit, description 7fi 



Root grafting. See Grafting. 



growth. See Growth, root, 

 hairs. See Hairs, root. 



Rootlets, blueberry and other plants, description 40-42 



Roots, blueberrv. growth under various conditions 15, 17-21, 



23, 24, 28, 36, 41, 57, 66, 76 



in peat, acidity determination 61-62 



inhabited by a raycorrhizal fungus 42, 45 



use of cuttings in propagation 85 



Rootstocks, blueberry, propagation of blueberry and related plants 86 



54708°— Bpl. 193—10 7 



