INDEX 



409 



Pineapple quince, III, 94, 235, 



243-246; V, 49 

 Pines, I, 64, 89; III, 7; VIII, 



109-113 



Pink, I, 117, 125; VII, 173-178 

 Pink chive, V, 262 

 Pitcher plant, I, 102-103 

 "Plan books," III, 35 

 PLANNING A NEW PLANT, II, 



185-212 

 PLANNING AN IDEAL PLUM OR 



PRUNE, IV, 75-94 

 PLANT AFFINITIES, II, 213-233 

 Plant antagonisms, II, 224-227 

 Plant breeder, I, 37, 43-48, 341; 



III, 61-62, 71-74; V, 47 

 Plant breeding, possibilities of, 



I, 37-52 



Plant cells, V, 83-85 



Plant improvement, I, 259-278; 



IV, 93, 171-175 

 Plant-insect alliance, II, 242 

 Plant intelligence, II, 337-341 

 Plant life, I, 63-64; II, 191; 



VIII, 117-123 

 Planting, II, 280-283 

 PLANTS WHICH YIELD USEFUL 



CHEMICAL SUBSTANCES, VI, 



67-93 

 Plum, I, 262-263, 273, 280-282; 



II, 35-59, 134, 144, 276-281, 

 305-306; III, 62, 85, 313-352; 

 IV, 7-179, 183-189; VII, 323- 

 327 



Plum-almond hybrid, VII, 323- 



329 

 Plumcot, characteristics of, I, 



261-265; III, 85, 273, 343; 



IV, 181-207 

 PLUMS AND PRUNES WITHOUT 



STONES AND SEEDS, IV, 75-94 

 PLUMS FROM EASTERN AND 



WESTERN SOURCES, IV, 7-23 

 Pole bean, V, 147-153 

 Pollination, I, 117-146, 148, 151, 



153, 186, 207, 327-328; II, 11, 



33, 37, 63, 111-115, 117, 



124, 127, 232-233, 235-266; 



IV, 87, 146, 152-153, 187; VI, 



230, 241, 259; VII, 29-31, 37, 

 51, 98-99, 120-121, 127, 131, 

 151-153, 181-182, 201, 233, 

 257, 323 



Pomato, II, 169-170 



Pomegranates, V, 107 



Popping corn, V, 338-339 



Poppy, VI, 326; VII, 199-210; 

 VIII, 301 



Population of United States, 

 VIII, 363-376 



Portland cement, III, 105 



Portugal quince, III, 236 



Potash, V, 92 



Potato, I, 110-116, 247; II, 165- 

 169; III, 97-98, 318; IV, 293- 

 295; V, 95, 100, 175-180, 181- 

 182, 285-309; VIII, 197 



Potato family, IV, 287-295 



POTATO ITSELF WHO WILL IM- 

 PROVE IT FURTHER? V, 285- 

 309 



Potato plants, II, 167 



Potato roots, V, 177-178 



Potato seed ball, I, 110-113; I, 

 116 



Potato tubers, modification of, 

 V, 179-180 



PRACTICAL POLLINATION, 11,235- 

 266 



PREFATORY NOTE, I, 21-35 



Prickly pear, V, 16 



Pride of the Congo, VII, 45 



Pride plum, IV, 129 



Primrose, II, 22; VII, 136-138 



Primus berry, II, 29; IV, 244- 

 255; V, 67, 151; VIII, 316, 

 329, 332 



Prize plum, III, 338 



PRODUCING AN ENTIRELY NEW 

 COLOR, VI, 279-305 



Profusion amaryllis, a free 

 bloomer, VI, 271 



Propagation, complementary 

 modes of, VII, 160-162 



Protein, V, 95 



Protoplasm, II, 225, 232; 

 III, 327; IV, 152, 158; V, 92, 

 93; 184-185; VIII, 349 



