INDEX. 



Mount Wilson one-lmndred-inch reflector, 



The, 217 

 Mull, Sapphire in, 386 

 Muscular effort, Relation of heart-weight 



to, 107 

 Museum, A plea for a British folk-, 299 

 and its guide. An " Ideal," 15, 93, 



155 

 , The historical medical, 374 



NATAL, VEGETATION OF, 265 

 Natural History notes from Bolivia and 



Peru, 152 

 Nature Photographic Society, The 



exhibition of the, 450 

 Nebula in the Pleiades, The Meropc, 179 



, Parallax of the Andromeda, 264 



, The Andromeda, 461 



Nebulae, Distribution of clusters and, 461 



Negatives, Reversed, 106 



Negro man in Britain, 123 



Negroes, Spotted, 224 



Nelson, Edward M, 222 



Neon and X s , 435 



Neptune, Belts on, 265 



, Limiting distance for hypothetical 



satellites of, 18 

 Nest made by Orang Utan, 392 

 Nesting-box Exhibition, 105 



boxes in Russia, 25 



Nests of the song thrush and blackbird 



The, 343 

 Newcomb's last researches on the Moon's 



motion, Professor, 344 

 New Zealand, A physiographical study in, 



385 



, Solar observatory in, 364 



Nicholson, W. A., 173 



Nitrogen by felspar, The fixation of, 463 



■ , The active modification of, 346 



Nodules on leaves, Bacterial, 306 

 Nomenclature of variable stars, The, 



421 

 Notes, 17, 59, 97, 143, 179, 217, 264, 305, 



344, 383, 425, 460 

 Notices, 40, 79, 120, 160, 200, 224, 240, 



280, 320, 360, 400, 440, 468 

 Nottinghamshire, The concealed coalfield 



of Yorkshire and, 268 

 Nova Geminorum, 59 



OBITUARY, 17, 179, 218, 265 



Observatory, Ben Nevis, 386 



," Campbell's " Stellar Motions," and 



Sir David Gill's " History of the Cape, 

 461 



, Greenwich, Meteorology and mag- 

 netism at the Royal, 269 



in New Zealand, A Solar, 364 



, Stony hurst College, 196 



, The work of Harvard, 305 



Oceanography of the Mediterranean, 

 385 



O'Halloran, Sylvester N. E., 114 



Orang Utan, Nest made by, 392 



Orchids, Germination of, 98 



Origin of Life," " The, 373 



Ornithology Notes, 24, 105, 149, 274 



Orthoptera, Gizzard in beetles and, 276 



Oscillations, Undamped, 187 



Ostrich with plumage of a cock, A hen, 7 



Oxygen starvation, 152 



Ozone on fibres, Action of, 346 



PALAEOLITHIC MAN, RAISED 



BEACHES AND, 220 

 Panama Canal, Probable effects of the, 



347 

 Parallax determinations, Yerkes', 425 



of the Andromeda Nebula, 264 



, Stellar, 143 



Paramoecium , Five-year pedegreed race of, 



27 

 Parents' National Educational Union, 



The annual conference, 174 

 Parr, W. Alfred, 4 



Pathogenic organisms in river water, 428 

 Pearls from gelatin, Imitation, 267 

 Pennatulids, Phosphorescence of, 468 

 Periwinkles and the tide, 393 

 Peru, Natural History notes from Bolivia 



and, 152 

 Pethen, Robert W., 13 

 Petroleum products, Formation of, 100 

 Petrology of sandstones, 22 

 Phasmidae, Catalepsy in, 333 

 Phenological observations, 221 

 Phenomenon, A physical, 114 

 Phosphorescence of pennatulids, 468 

 Photoelectric effect, The, 26 

 Photographic effect of chemical reactions, 



326 

 Society, The exhibition of the 



Nature, 450 

 Photographing rock sections, 25 

 Photographs at high pressure, Spark, 467 

 , Faulty perspective seen in many, 



391 

 Photography, Astronomical, 252 



for amateurs, Stellar, 449 



Notes, 25, 65, 106, 150, 185, 222, 274, 



312, 350, 391, 434, 446 



with a pin-hole, 65 



small telescope, Simple 



directions for, 252 

 Photometer, The Selenium, 265 

 Photo-micrographic apparatus, A new, 



349 

 Photo-micrography. — Backgrounds, Low- 

 power, 22 

 Phyllotaxis and the discal florets of com- 

 posite flowers, 188 



Society, Meeting of the, 243 



Physics Notes, 25, 151, 186, 224, 275, 313, 



435, 467 

 Physiographical study in New Zealand, 



A, 385 

 Pianoforte touch," " The dynamics of, 186 

 Pigmentation, Mendelism and, 19 

 Pisidium, The British species of, 273 

 Pitcher plant Dischidia, Biology of the, 



307 

 Planet Albert, The, 306 

 Mars, Considerations on the physical 



appearance of the, 193, 238 



, The, 252 



, The existence of an Ultra-Nep- 

 tunian, 171 

 Planetary distances, The, 426 

 Planets, Measures of the, 144 

 , The Albedoes and brightness of the, 



17 



, Trojan group of, 306 



, Ultra-Neptunian, 218 



Plant fossils in Lava, Preservation of, 386 



life, Problems of, 201 



protection, 317 



Plants, Biology of desert, 59 



, Cushion, 346 



in South- West Ireland, Suggestions 



towards a solution of the problem of 



the Iberian, 212 

 in South Germany in 1911 and 1913, 



The flowering of, 458 



, Occurrence of formaldehyde in, 267 



, The formation of alkaloids in, 463 



to freezing, Resistance of, 60 



Platinum printing, 274 

 — ■ — toning, 350 



Platinum prints. Use of glycerine in 

 developing, 312 



, Warm tones in, 312 



Pleiades, The merope nebula in the, 179 



Plumage of a cock, A hen ostrich with, 7 



question, The, 357 



the male bird, Hen birds assum- 

 ing the, 189, 288 



Pocket-case for micro-slides, A useful, 147 



Pocock, R. J., 67 



Poison of amphibian skin, 435 



Polarissima, The star, 264 



Polygons, On the construction of regular, 

 337 



Polytoma, Auxetic action on spores of a 

 new species of, 109 



Pomace-fly, Fecundity of the, 276 



Powell, T. H., 210 



Preservation of Birds, The Committee for 

 the Economic, 274 



Pressure gauge, 435 



Price, S. Reginald, 201, 361 



Prideaux, R. Morris, 283 



Printing, Platinum, 274 



Prints, and washing water. Testing for 

 " Hypo " in mounts, 466 



, Fading of silver, 150 



, Glazing silver, 434 



Proctor, Mary, 364 



Psychidae, 62 



Psychology of telescopic vision, The, 4 



yUARTZ, IGNEOUS, 183 

 Queketter, 148 



Quekett Microscopical Club, 23, 102, 147, 

 183, 312, 466 



RACE ? HOW DOES EXPERIENCE 



COUNT FOR THE, 26 

 Radiation, Rontgen, 186 

 Radio-active substances. Nomenclature of, 



313 

 Radio-micrography by P. Goby, New 



method of, 388 

 Rain gauge, The " Fernley " self-recording, 



348 

 Rainbow cup, Professor Boys', 115 

 Rainfall, 1912, British, 387 



, Duration of, 465 



Rainwater, Hardness of, 219 



Reaction, Photographic effect of chemical, 



326 

 Redgrove, H. Stanley, 68, 108, 239, 289, 



337 

 Reflector, The Mount Wilson one-hundred- 

 inch, 217 

 Regenerative capacity, Extraordinary, 187 

 Keid, R. W., 454 

 Reports, 420 



Research Defence Society, 84 

 Respiration in the water boatman, 314 

 Reviews, 29, 74, 116, 157, 190, 227, 277, 



318, 358, 397, 440, 447 

 Aeronautics, 157 

 Anthropology, 74 

 Archaeology, 318 

 Astronomy, 29, 74, 157, 227, 277 

 Aviation, 447 



Biology, 397 



Botany, 158, 228, 397 



Chemistry, 31, 75, 116, 158, 190, 277, 



319, 358, 397, 440, 447 

 Economics, 278 



