454 
rOPULAR SCIENCE REVIEW. 
PAGE 
Optics, Popular 75 
Orange Tree, Diseased, Ashes of a 86 
Orchids, Fertilization of 416 
Ordeal Poison-nut of Madagascar... 83 
Organisms in Volcanic Rocks 311 
Organ-Pipe Coral 331 
Origin of Infusoria, Molecular 51 
Ormeroid’s Geological Index 91 
Orthoptera, Digestive System in ... 222 
Osseous Medulla, Relation of, to the 
Blood 315 
Owen’s (Prof.) Anatomy 67 
Oxen, South American 222 
Oxidation of Paraffin, Product of... 87 
Oxyhydrogen Lamp, New 327’ 
Oyster, Practical Zoology of the ... 445 
Pacixian Corpuscles, the 222 
Packard’s “ Guide to the Study of 
Insects” 71, 176,414 
Page’s “ Chips and Chapters for 
Young Geologists” 293 
Palaentology 190, 309 
„ of the Alpine Tertiaries 191 
Palladium 218 
Palliser Bolts 315 
Paper, Photographic 101 
Paper Prints, Plain 210 
Paraffin, Products of the Oxidation 
of 87 
Panigonite, Analysis of 438 
Passion Flowers 159 
Patents, Abolition of 417 
PathologicJil Development of Lichen 201 
Pennetier’s “L’Originede la Vie”... 172 
Perspective, Shadow 77 
Peru, Balsam of 308 
Pharmaceutical Society, BoUmical 
Prize of the 301 
Phenomena of Combustion under 
Pre.SHure 86 
Phenyl-bichloracetic Acid 190 
Ph i 1 1 i ps’ H ( Prof. ) Exeter Lect ure ... 433 
Phillips’s “ Vesuvius” 170 
3’hloron, Analysis of 304 
Phosphorescence, Electric, in Ibiri- 
fied Gases 325 
,, how to Determine 441 
Phosphorus, .Antidote to 188 
,, Holder 307 
„ in Cast Iron, Detection 
of 320 
,, in Cast Iron, Estima- 
tion of 88 
Photo crayon Process, new 209 
I'hoto-enamel Process, new 325 
Photogniphic Paper 101 
„ Society, New 324 
Photogniphs, ,Mc«Hcal 202 
,, New .Mounts for 101 
„ of -Authors 212 
PAGE 
Photographs of the Great Eclipse, 
Tennant’s 179 
„ of the Trans it of Venus 419 
„ Printing, by Mecha- 
nical Means 210 
Photography 100, 209, 323, 440 
,, Lamps for...... 101 
„ Landscape, in Cloudy 
Weather 101 
,, Observation of the 
Transit of Venus by IT'O 
„ Telescopic 212 
„ Truth of, versus Artis- 
tic Licence 211 
Photo-rstatistics 324 
Phrenology, the Lingering Admirers 
of 380 
Phyllobothrium, Scolex of, in a 
Dolphin 106 
Physical Properties of Gadolinite... 318 
Physics 102, 212, 325, 440 
„ at the British Association . 444 
„ of the Gulf-stream 326 
Physiological Action of Cyanogen 
Gas 96 
„ Effects of Lightning . 316 
„ Essays 77 
„ Phenomena of Plants 
Explained 303 
Physiology, Chair of 332, 334 
Pig-iron, Conversion of, into Steel . 99 
Pinus Pungens 422 
Pipes, Joints of, for Water Mains . 315 
Planet Mars in Februai'y 1869 ... 39 
„ Saturn in July 1869 252 
Planets during Spring 181 
„ the 82, 300, 422 
Plants, Bacteria in the Protoplasm 
of 185 
,, Carbonic Acid Decomposed 
by 189 
,, Cellular, why Absent from 
Coal Measui’es 302 
„ Chemical Food of 189 
,, Fossil, of Greenland 312 
„ from Brazilian Coal-beds ... 311 
„ how Light Affects the De- 
composition of Carbonic Acid by 424 
„ Influence of Artificial Light 
on 302 
„ Nutrition of 423 
„ Pliysiologiail Phenomensi of. 
Explained 303 
„ Relative Value of the Cha- 
racters of 425 
Pneumogastric Nerves, Influence of, 
on Respiration 200 
Po, Deltas of the 91 
Pfjisoning, Detection of Mercury in 
Cases of 187 
Poison-nut of Madjigascar, Ordeal. 83 
Poison, Snake, and its Cure 202 
