INDEX. G35 



Opium, cultivation of, 64. 

 Orange-milk mushroom, 102. 

 Ornithology, economic, 210. 



promotion of economic, 13. 

 Ottawa experiments, report of the, 123 to 133. 

 tables of diffusion at, 126, 130, 131. 



P. 



Packard, Dr. A. S., report on forest-tree insects, 319. 



Paniciim sangititiale, 75. 



Papaver somnifennn, 64. 



Parasites in domestic fowls, 92. 



Pasteur, L., on detecting presence of flaccidity in chrysalides of silk-worm, 229. 



Pasteur's vaccine for rouget, an examination of, 479. 



Pea, 620. 



Peach-leaf blister and yellows, 37 to 42. 



Pear Diplosis, 283. 



tree blight, causes and remedies, 42 to 45. 

 scab, 81. 

 Pears cracking, causes and remedies, 42 to 45. 

 Pebrine, a disease of silk-worms, 215, 221 to 225. 

 Pedigree stock, value of, 424. 

 Periodical Cicada, 210, 2i3, 233 to 256. 

 Perisporiacece, 80, 

 Peronospora, 77, 84. 



effusa, 85, 

 gangliformis, 84. 

 infestans, 83, 

 7iivea, 84, 

 parasitica, 84, 

 -- schJeideniana, 84. 



sparsa, 84. 

 irifolioruvi, 84. 

 viticola, 76, 84. 

 Peronosporece, 83, 84, 85. 

 Peruvian bark, description of, 65. 

 Phleum jyratense, 87. 

 Phoma, 80, 

 Phylloxera, 279, 



galls inhabited by Antlionomus, 278. 

 Phytopthora infestans, 83, 

 Pine 47?!or6ia, 327, 329, 

 Piperaceoc, 73, 

 Plant-Uce, 85. 



Plants, cross and self fertilization of, 51. 

 fungous diseases of, 76 to 85. 

 under glass, 33. 

 Platygaster, parasytic on pear midge larvae, 235. 

 Pleuro-pneumonia, action taken in regard to, 431 

 in Delaware, 470. 

 Illinois, 468. 

 Kansas, 467. 

 Kentucky, 431. 

 Maryland, 472. 

 New Jersey, 472. 

 Ohio, 463. 

 Pennsylvania, 472. 

 Virginia and West Virginia, 469. 

 inoculation for, by State authorities and others, 476. 

 investigations in reference to, in Tennessee, 433. 



Texas, 439. 

 letter of Governor Knott in relation to, 432. 

 notion in regard to, in Missouri, 463. 



opinion of the Attorney-General on the law for extirpating, 461, 

 outbreak of, in Missouri, 452, 

 progress of, in Missouri, 453. 



recent developments in regard to, iu Kentucky, 444. 

 report of the State board of Missouri in reference to, 464. 



