Index. 



1445 



Page. 



Phonic acid and iodine 844 



remedy 899 



Pliosphorescent animalcules 629 



Phosphorus, luminosity of 737 



poisoning by 698 



Photographic carbon prints 845 



developer 579 



sensitive dry plates.. . 670 



Photographing children 787 



Photo-lithographic process 54 



Photographic Society, origin of 1024 



proceedings of, 1025 



Photographs 643 



Photography, instantaneous 668 



malt used in 679 



Photometer or lucimeter 729 



Photo-peripateligraphs 678 



Picric acid in batteries 590 



Pile foundations 855, 890 



Pipe joints, improved 178 



Pitchforks, improved 272 



Planes, true 699 



Planetarium, Barlow's 661 



Plant, a trembling 623 



Plants, influence of colored light on, 908 



Plaster of Paris 584 



sowing of 252, 329 



excessive use of 354 



Plastic slate roofing 164, 323 



Pleuro-pneumonia , 1007 



Plowing 523 



by steam 583, 727 



Plow points, improvement in 165 



steam 888 



Plows, sulky and other 327 



trench 516 



Pneumatic railway and dispatch, 178 671 

 Poisoning, antidote of external. .. . 986 

 Polytechnic Association proceed- 

 ings 561 to 1023 



Population 658 



Porcelain glaze, new 598 



pictures 54 



Post's sap spout 503 



Potash from feldspar 571 



process for extracting 647 



Potato, 813 



best variety to plant 227 



culture of the 198, 445 



germination of the 397 



growing the 346 



rot, iron an antidote for. . . . 420 



the Mercer 355 



Potatoes, exhibition of 118 



experiments with .. . 292, 450 



frozen, sweet principle in, 842 



how to grow early 403 



marketable 406 



potash for 520 



seed 541 



from small 271 



Poultry, directions for packing .... 390 



Powder magazines 839 



Pratt's writing machine 950 



Premiums awarded at Strawberry 



exhibition 17 



Pagk 

 Premiums awarded at 37th annual 



exhibition 26 



Premiums, suggestions in relation to 222 



Pressy 's stump machine 443 



Preterre on Geisler tubes. 811 



Probe for bullet wounds 708 



Proceedings of Farmers' Club 138 



Photographical Sec- 

 tion 1025 



Polytechnic Associa- 

 tion 561 



Projectiles, experiments with 782 



Propeller, steering 883 



Propogation of concussion through 



gas 589 



Pruning fruit trees 267 



Pumps 784 



report of judges on 87 



Pupilometer 644 



Pyramid, the great 641 



Pyrotechnical 738 



Q. 



Quincy, 111., great bridge at 706 



Quinn on manures 488 



R. 



Racks for whips, brooms, &c 60 



Raft, life-saving 576 



Railway, a mountain 596 



at Paris 561 



new system of 654 



the longest train 657 



Rail coupling and fastening 746 



Rain on Atlantic slope . '. 667 



Raspberry, Clark 231 



Elm city 212 



plantation 224 



Philadelphia 211 



prize, Fuller's 209 



Seneca black cap 231 



Rawson's reflector for photographs. 748 

 Raymond on National School of 



Mines 1021 



Reagent, a new 737 



Reaping machine, gauge for holding 



bars 149 



machine for grind- 

 ing knives. . 120, 174 

 seat for driver of . 149 



Red lead 698 



Reflector, multiplying 74& 



Refractor, a great 880 



Remedial agents, new 786 



Report of board of trustees 3 



of board of managers of 



Strawberry show 15 



on 37th exhibition 19 



of committee on finance. ... 6 



of committee on agriculture, 7 



of committee on horticulture, 8 

 of committee on manufac- 



tm-es and machinery 11 



of committee on chemistry, 



mineralogy and geology. . 12 



