INDEX. 



ACHROMATIC CONDENSER and its 



use as an apertometer, The Aplanatic 



and, 310 

 Adams, Lionel E., 25, 70, 150 

 " Adon " telephoto lenses, 107 

 Aeroplanes and weather, 387 s3 

 Agama, Habits of the, 394 

 Air, Winds in the free, 269 

 Alexander, P. J., 453 

 Albedoes and brightness of the Planets, 



The, 17 

 Albert, The Planet, 306 

 Alchemical Society, The, 114, 450 

 Alcohol as a motor fuel, Use of, 182 

 Alga, A rare, 101 



Algae as rock-formers, Calcareous, 430 

 — ■ — , Evolution among lowly forms, The, 



201 

 Alkaline water on lead, Action of, 463 

 Alkaloids in plants, The formation of, 463 

 Allen, Immo S., 373 

 Amateurs, Stellar photography for, 449 

 America, Early man in South, 347 

 Amphibian skin, Poison of, 435 

 Analysis, Luminescence, 100 

 Andromeda Nebula, Parallax of the, 264 



, The, 461 



Angiosperms, Recent research on embryo- 

 logy of, 383, 426 

 Animal life of Blakeney Point, Some notes 



on the, 132 

 Animals, Hairs of, 283 



, Manganese in, 187 



Anlacodiscus kittonii — An apology, 433 



Announcements, 213 



Antarctic Echinoderms, Parental care 



among, 67 



Lichens, 265 



Antoniadi, E. M., 193, 288 



Ants and caterpillars, Commensalism of, 



392 

 Apertometer, The aplanatic and achro- 

 matic condenser and its use as an, 310 

 Aperture to power in the microscope 



objective, On the relation of, 63, 102, 



148, 189 

 Aplanatic and achromatic condenser and 



its use as an apertometer, The, 310 

 Apparatus, A new photo-micrographic,349 

 Argentine, Oven birds in the, 149 

 Argon and its place in Nature, 307 

 Arran, A Riebeckite rock from, 146 

 Arsine, Micro-organisms producing, 463 

 Asama-Yama (Japan), The recent erup- 

 tions of the, 94 

 Ashton, Percival J., 334 

 Astronomy Notes, 17, 59, 97, 143, 179, 



217, 264, 305, 344, 383, 425, 460 



, The new, 114, 243 



Atkinson, A., 288 



Atlantic, January, 1913, Storms on the, 



220 

 Atom, The birth of an, 145 

 Atomic weight of Chlorine, 464 

 Atmospheric turbidity of 1912, 269 

 Auroral expedition to Bossekop in the 



spring of 1913, On an, 263 

 Australia, Discovery of a Comet in South, 



179 



Australia, Land crayfishes of, 393 



Australites, 308, 409 



Auxetic action on spores of a new species of 



Polytoma, 109 

 Azolla, Massulae of, 18 



BACTERIA AND FUNGI, LUMINOUS, 

 98 



, Cytology of, 307 



Bacterial nodules on leaves, 306 



Bacteriology, Electrical conductivity in 

 the service of, 204 



Bacterium, A new iron, 266 



Barnett, H. Norman, 253 



Barograph Record, A, 68 



Barometer, Garnet as a geological, 386 



records, Lowest, 221 



Bat's wing, Accessory cartilage in, 353 



Bauxites of North-East Ireland, Iron- 

 ores and, 101 



Beach, The Shingle, 1 



Beaches and palaeolithic man, Raised, 

 220 



Bedrock, 332 



Bee, The red-tailed humble, 161 



Bees, Colour sense in, 152 



, Hermaphrodite, 392 



Beetle, The cigarette, 314 



Beetles and Orthoptera, Gizzard in, 276 



Bellamy, F. A., 293, 334, 421 



Belts on Neptune, 265 



Ben Nevis Observatory, 386 



Benham, Charles E., 163 



Benn, Alfred W., 459 



Bennett, The Rev. F., 47 



Bickerton, Professor A. W., 407, 441 



Biogeography of the Atlantic Isles, 267 



Biological enquiry, An unbiased, 205 



Biology of desert plants, 59 



submerged water plants, 345 



the pitcher plant Dischidia, 307 



Bird-calling, 173 



Birds assuming the plumage of the male 

 bird, Hen, 189, 288 



in the Argentine, Oven, 149 



, Perching in, 187 



, The Committee for the Economic 



preservation of, 274 



, existence of luminous, 321 



, recovery of marked, 24 



Blake, A. G„ 242 



Blakeney Point, Some notes on the animal 

 life of, 132 



Blathwayt, Theodore B., 298 



Bolivia and Peru, Natural History notes 

 from, 152 



Boron, Hybrids of, 145 



Bossekop in the spring of 1913, On an 

 Auroral expedition to, 263 



Botany at the British Association, 383, 

 1(12 



, Dark-ground illumination and ultra- 

 microscopic methods in, 361 



Botany Notes, 18, 59, 98, 144, 180, 218, 



265, 306, 345, 383, 426, 462 

 Boys' rainbow cup, Professor, 115 

 Brierley, Harwood, 175 

 Britain, Negro man in, 123 

 British Association, Botany at the, 383, 



462 



, Chemistry at the, 21, 429 



, Section G, 464 



Bug, A marine, 354 



Bugs, Geographical distribution of bed, 



354 

 Bulman, G. W., 161, 212, 281 

 Burke, John Butler, 373 

 Burton, James, 62, 102, 466 

 Butterfield, W. Ruskin, 299 

 Butterflies, A detail in the protective 



colouration of, 47 



CABBAGE FLEA, VINDICATION OF 



THE, 26 

 Cairns, J. E., 154 



Calcareous algae as rock-formers, 430 

 Calcite crystals from a water-tank, 464 

 Cameras, Fixed focus, 186 

 Campbell's " Stellar Motions," and Sir 



David Gill's " History of the Cape 



Observatory," 461 

 Canaries, The establishment of a race of 



white, 401 

 Cape Observatory," Campbell's " Stellar 



Motions," and Sir David Gill's 



" History of the, 461 

 Carbon black, The manufacture of, 101 



Tetra-iodide, 307 



Carp, A mouthless, 152 

 Cartilage in bat's wing, Accessory, 353 

 Catalepsy in Phasmidae, 333 

 Caterpillars, Commensalism of ants and, 



392 

 Cave spiders, 276 

 Cavers, Professor, 18, 59, 98, 144, 180, 



218, 265, 306, 345, 383, 426, 462 

 Cell structure and function, Modern con- 

 ception of, 8 

 Celts and their manufacture, Polished, 



210 

 Cephalopods, Remarkable blind, 468 

 Chaetopterus tubes, Commensal crustaceans 



in, 468 

 Chambers, W. F. D., 378 

 Chemistry at the British Association, 21, 



429 

 Notes, 21, 60, 100, 145, 182, 219, 



266, 307, 346, 384, 428, 463 

 — — of the forest, The, 367 



silkworm, 353 



Chin, The story of the, 410 

 Chlorides by sodium, Reduction of metal- 

 lic, 100 

 Chlorine, Atomic weight of. 464 

 Chrysanthemum, Ray florets in the disc of, 



409 



