478 



Index. 



Plants, ozone produced by, 470. 

 Plaster of Paris used for the adultera- 

 tion of honey, 95. 

 Platinocyanide of ammonia, 68 ; of 



magnesium, 389. 

 Pleurosigma hippocampus, 433. 

 Plumatella, stato blasts of a, 271. 

 Pneumatocyst of Physalia, 363. 

 Poisonous caterpillars, 124. 

 Poisonous hairs of caterpillars, 126. 

 Polyps, meduste of hydroid, 471. 

 Polytrichum, capsules of, 8. 

 Polyzoa, nervous system of, 67. 

 Porpoise, 161. 



Portable microscope, Warrington's, 349. 

 Portunus marmoreus, 77. 

 Potash from the animal kingdom, 391. 

 Principles which should guide an artist 



in dealing with the repulsive and 



ugly, 119. 

 Proboscis of honey bee, 90. 

 Proceedings of learned societies, 60, 



225, 305, 384, 465. 

 Prodticts of the wbale fishery, 11. 

 Primage and leakage, causes of the 



waste of heat, 403. 

 Printing, size of microscopic, 470. 

 Pseudo-ceratophorus epiphyses of giraffe, 



18. 

 Pseudopodia of the rhizopods, 471. 

 Pterodactyle brevirostris, 447 ; longi- 



rostris, 447 ; crassirostris, 447 ; Sedg- 



wickii, 451 ; Curiam, 451 ; compressi- 



rostris, 451. 

 Pulex irritans, leg of, 397, 

 Purkinje vesicle, 107. 

 Purpurine, or madder purple, 113. 

 Pyramids, age of the, 469. 



Quatrefages' metamphoses de l'homme 



et des animaux, 95. 

 Quetelet on the electricity of the air, 408. 

 Quinaquina, or Loxa bark, 454. 

 Quinine, discovery of, 456. 



Radiata, reproductive arrangements of, 

 105. 



Radiation of beat, 404. 



Raised beaches of Scotland, 60. 



Ramsay on the glacial origin of lakes, 228, 



Raphides, formation of, 392. 



Rasal Gjathi, 55. 



Remora, popular superstitions respect- 

 ing, 412. 



Resting eggs, or statoblasts of a pluma- 

 tella, 271. 



Rhamphorhynehus Gcmmingii, 417. 



Rhizopoda, pseudopodia of, 471. 



Ring-ousel in the New Forest, 19. 



Poman tile recently found in Leicester, 

 177. 



Royal Geographical Society, 3S6, 468. 



Royal Institution, 63. 



Royal Society, 388. 



Royal Astronomical Society, 465. 



Rubia tinctorum, madder plant, 111. 



Sabexxa, 81. 



Sable furs at the Exhibition, 162. 



Salmon, history of the, 188. 



Salpce, marine molluscs, 100. 



Satellite of Venus, the supposed, 469. 



Scolytus destructor, 30. 



Sea-lamprey, 411. 



Sealskin in the Exhibition, 161. 



Secchi on the second comet of 1862, 

 471. 



Secchi on Mars, 472. 



Selection of subjects by artists, import- 

 ance of, 120. 



Semeroptera Wallacii, 72. 



Sensitive plates for micro-photographs, 

 159. 



Sepiola Atlantica, cuttle-fish, 81. 



Septoria thecicola, spores of, 9. 



Serpentis, 56. 



Serpula contorluplicata, 342. 



Shale, 109. 



Shales, supply of, 110. 



Siberia, furs from, at Exhibition, 162. 



Side silver reflector for microscope, 431. 



Silicon and hydrogen compound, 887. 



Simulium elegans, tibia of, 396. 



Singing machine, 227. 



Size of microscopic printing and writing, 

 470. 



Slate, alum, 109. 



Snails, temperature of, 146. 



Snake, discovery of a new British, 387. 



Star finding, 86. 



Stars, double, in Hercules, Serpens, 

 Ophiucus, Canes Yenatiei, Cassiopea, 

 54 ; Bootes, Corona Borealis, Her- 

 cules, Ophiucus, Serpens, and Capri- 

 cornus, 133; Lyra, Cygnus, Praeo, 

 299 ; Cygnus, Lelphinus, Andromeda, 

 Aquarius, Pegasus, Aries, Triangu- 

 lum, 370. 



Stenopteryx hirundinis, legs of, 39G. 



Stenorynchus phalingium, 76. 



Submarine architecture, 339. 



Summer afternoon by the sea, 149. 



Summer, minstrels of the, 18. 



Sun, determining the distance of the, 

 312. 



Sunfish, the, as a host, 82. 



Supposed minute vertebrate, 471. 



Supposed satellite of Yenus, 469. 



Solar eclipse, Delarue's photographs of 

 the, 226. 



Solaster papposa, sun star, 79. 



Solubility, experiments in, 147. 



