INDEX. 



729 



0. 



Page. 



Oak 675 



grove in Cftlifornia 580 



varieties of the 258 



Oil cavities ."51 



from cotton and wool 3;J6 



wells 346, 350, 351 



connected 353 



intermittent 352 



Olive 678 



Onions 66, 264 



how to destroy worms in 288 



Onondiiga Salt Company 431 



Opium poppy 37, 113 



Oporto grape 256 



Opossum fur 384 



Orange 680 



Orchards, how to grow a healthy 46 



Orchids 617 



Organ Harmoniums % 529 



keys, moving of 341 



Osage orange hedges 131, 154, 180 264 



its hardiness, 170 



Osgood on the garden as an educator 644 



Otter fur 384 



Oxidation, slow 664 



Oxide of silver 318 



Oxygen as a medicine 306 



Ozone 306,318,364 



acting on silver .salts 469 



Pacific telegraph . . . . 493 



Palladium the metal 468 



Panzy 615 



Paper buttons 409 



collars 364 



from corn stalks 342 



sugar cane 467 



wood 395 



Paradise stocks 128 



Parallelogram of forces acting on car 



trucks 345 



Parchment paper 334 



Paris international exhibition 479 



Peach trees " 73 



and tanzy 104 



Pears 193, 6.33, 659, 661, 668, 709 



exhibition of French 636 



new native ■. . 639 



the way to raise 123 



Pear, the Beekman 638 



tree blight 27, 54 



Peas, crimson 28 



Peat for locomotives '. 263 



Pennywort 151 



PtEonias 59 



Pepper cruet improved 362 



Periodic comets 349 



times of planets 372 



Peru, agriculture of 202, 209 



Persian black lambs wool 391 



Pctr.jleum as fuel 314, 484 



export of 463 



t first use of 354 



for fruit trees 66, 94 



geology of 426 



volatile 309 



wells 350,469, 572 



Pharos, the 599 



Phenomenon in farming v. . . . . 64 



Phosphorus and sulphur 339 



oxidation of 444 



preparation of 44u 



•^Am. Inst.] 



Paqb. 



Photographic compound . 383 



feat ": 397 



Photography as a detective 492 



in natural colors 491 



Photosculpture 424 



Phyllotaxis, the law of 266 



Pianoforte, cycloid 561 



history of 536 



Pianofortes made in the U. S 672 



Pictures by Chiuenli .382 



Pigeon manure 96 



Pipes, form of, affecting flow 337 



Pistons, velocity of steam 495 



Plane tree 678 



Plants protected from frost 100 



Pleuro pneumonia « 65 



Plowing by steam 378 



under weeds , 131 



Pneumatic railway 373 



way of Needham 572 



Plumbago 405 



Poison ivy cure, 74, 94, 132, 155, 170, 229, 2.34 



Poison, labels for 332 



Polarising prism , 363 



Pollen, vigor of 325 



Pollux the mineral contains Coesium 344 



Polytechnic Association, proceedings of.. 



296-605 



Pomegranate 682 



Pomological Society, delegates to the .... 631 



Pompeii, discoveries in 440 



Potatoes, early 173, 187 



how kept for years 361 



not hurt by freezing 275, 288 



washing of 71 



Potato, experiments in the culture of, 37, 77 



13.5 



Peruvian 223 



Poultry, a new disease of 181 



can they be kept in large flocks. . 102 



raising 78, 149 



Powder, a new, for mining 344 



Prairie flowers 288 



tea 112 



Prairies, cultivating without fences 280 



Premiums awarded at the Horticultural 



exhibition, 1864 17 



Printing, new process of 389 



Prizes ofi"ered 422, 469 



Pruning trees and vines, 226, 237, 243, 262 



260 



Prussia, exhibition of industry in 202 



Pumping at oil wells 346 



Pumpkins 177 



Pumps 474, 477, 482 



Pyramid, the great 456 



Pyramids, age of the 697 



Q. 



Quarter of grain 

 Quinua of Peru . 



68 

 223 



R. 



Rabbits eating trees 202,215, 228 



Hadishes 80 



Railroads in the U. S 459 



gauges of 671 



Railway car, apparatus for starting 564 



from Paris to Madrid 345 



Rain in N. C. mountains 506 



water 318 



Rat trap 261 



Raspberries 105, 290 



IJ* 



