Nature, "| 

 April 1 1, 191 2 J 



Index 



IX 



Davenport (Prof.) and Dr. D. Weeks, Inheritance in 



Epilepsy, 355 

 Davidson (Sir James Mackenzie), Vital Effects of Radium 



and other Rays, 601 

 Davis (Dr. Oliver), Medicines, Ancient and Modern, 562 

 Dawkins (R. M.), Excavation at Sparta, 380 

 Day (Dr. A. L.), Geophysical Research : Presidential 



Address, 331 

 Dean (H. R.), Factors concerned in Agglutination, 234 

 Deeley (R. M.), Temperature of the Upper Atmosphere, 211 

 Deeley (R. M. and D.), Chalk and Ice, 484 

 Dendy (Prof. Arthur, F.R.S.), Momentum in Evolution 



(British Association, Zoology Section), 24, 301 ; Errata, 



326 ; Crabs in Cavities of Sponges, 24 ; the Cyclostomes, 



2^ ; the Mnemic Theory of Heredity, R. Semon, 371, 483, 



586 

 Dendy (Miss), Mental Defect, gt 



Dennett (R. E.), Notes on West African Categories, 38 

 Desgrez (A.), Influence of Chemical Constitution on 



Toxicity of Nitriles and Amides, gq 

 Desgrez and Feuilli^ (MM.), Estimation of Urea, 166 

 Desgrez (A.) and others, Influence of Dimethylamine 



Chlorohydrate on the Nutritive Exchanges, 269 

 Deslandres (H.), Utility of Planetary Observation, 268 

 Desloges (Jarry), Aspect of Mars, 20, 88, 155, 259, 327, 389, 



423, 459 ; of Saturn, 459 

 Desroche (P.), Mode of Action of Coloured Light on the 



Chlamydomonas, 166 

 D'Esterre (C. R.), Supposed New Variable or Nova, 87, 



191 1, Persei, 389 

 Dichmann (Carl), Alleyne Reynolds, the Basic Open-hearth 



Steel Process, 309 

 Dickson (Dr. H. N.), on Meteorological Observations, 470 

 Dines (W. H., F.R.S.), the Weather of 1911, 175, 348; 



Statical Changes of Pressure and Temperature in a 



Column of Air that accompany Changes of Pressure at 



the Bottom, 303 

 Dixev (Dr. F. A.), Scent Patches of Lepidoptera, 27 

 Dixon (Prof. H. B., F.R.S.), Lecture on P. E. M. 



Berthelot, 152 

 Dixon (H. N.), Some Mosses of New Zealand, 267 

 Doflein (Prof. F.), Probleme der Protistenkunde, II. : die 



Natur der Spirochaeten, 209 

 Dominici (H.) and others. Persistent Radio-activity of the 



Organism under the Influence of Radium in an Insoluble 



Form, 403 

 Donkin (Sir H. Bryan), Inheritance of Mental Characters, 



210 

 Donnan (Prof. F. G.) and Dr. J. T. Barker, an Experi- 

 mental Investigation of Gibbs's Thermodynamic Theory 



of Interfacial Concentration in the case of an Air-water 



Interface, 97 

 Douxami (H.), Seismographic Observation at Lille of the 



Earthquake of November 16, 191 1, 201 

 Downing (Dr. A. M. W., F.R.S.), the late M. Radau, 438 

 Drawbaugh (Daniel F.), Death, 85 

 Drude (Prof. O.), Plants of Britain and the Glacial Period, 



57 ; Constructing Phytogeographical Maps, 58 

 Dubrisay (M.), Chemical Equilibria in Solution, 573 

 Duckworth (W. L. H.), Cave Exploration at Gibraltar, 604 

 Dudgeon (G. C), the Agricultural and Forest Products of 



British West Africa, 443 

 Dijrr (Prof. E.), Erkenntnistheorie, 139 

 Duggar (Prof. J. F.), Southern Field Crops (exclusive of 



Forage Plants), 3 

 Dumont (Prof. E.), Grandeurs et Nombres — Arithm6tique 



G^n^rale, 274 

 Dunoyer (Dr. L.), Magnetic Exploration at Sea and Pro- 

 gress of Terrestrial Magnetism, 564 

 Durand (Th^ophile), Death, 418 ; Obituary Note, 4,';5 

 Duthie (J. F.), Flora of the Upper Gangetic Plain, and 



adjacent Tracts, 411 

 Duval (H.), Molecular Refraction of Azo-compounds, 98 

 Dwerryhouse (Dr. A. R.), Geological and Topographical 



Maps: their Interpretation and Use, 411 



Ebfll (Dr.), Ephemeris of Comet 1911c (Brooks), 54; 



Ephemerides for Comets 1911/ and 191 ij?, 327 

 Edelsten (H. M.), Caterpillar and Pupa of the Moth 



Nonagria neurica, 89 ... 



Edmunds (Dr. C. K.), Science among the Chinese, 385 

 Edridge-Green (Dr. F. W.), Simultaneous Colour Contrast, 



502 

 Edser (E.), General Physics for Students : a Text-book on 



the Fundamental Properties of Matter, 3 

 Eggeling (Prof, von). Physiognomic und Schaedel, 495 

 Eginitis (D.), Observations of Comet 1911c (Brooks), 402 

 Elderton (Miss E. M.), Marriage of First Cousins, 152 

 Elliott (W. T.) and Miss B. Lindsay, Boring Molluscs, 26 

 Ellis (G. W.), and J. A. Gardner, Origin and Destiny of 



Cholesterol in the Animal Organism, 234 

 Emery (Prof. C), Habits of Amazonian Ant Polyergus 



rufescens, 51 

 Enock CFred), " Fairy Flies " (Mymaridse) : British Associa- 

 tion Lecture, 23 

 Ermen (W.), Glazed Frost, 550 

 Esdaile (Miss P. C), Scales of the Salmon, 132 

 Estenave (E.), Synthesis of Complementary Colours by 



means of Gratings, 402 

 Evans (A. H.), a Fauna of the Tweed Area, 545 

 Evans (Dr. J. W.), the " Isothermal Layer," 483 

 Evans (M. S., C.M.G.), Black and White in South-east 



Africa : a Study in Sociology, 408 

 Evans (Dr. Willmott), Medical Science of To-day : a 



Popular Account of the More Recent Developments in 



Medicine and Surgery, 40 

 Ewart (A. J.), Bitter Pit and the Sensitivity of Apples to 



Poison, 539 



Fabre (J. H.), A. T. de Mattos, the Life and Love of the 



Insect, 106 

 Fantham (Dr. H. B.), Herpetomonas pediculi, nov. spec, 



Parisitic in the Alimentary Tract of Pediculus vesiimenti, 



435 

 Farquharson (the Right Hon. R.), In and Out of Parlia- 

 ment, 1^46 

 Fassig (Dr. O. L.), Trade Winds in Porto Rico, 290 

 Fay (Prof. I. W.), Chemistry of the Coal-tar Dyes, 271 

 Fayet (G.), Comet igiih (Schaumasse), Elements, 225; 

 Provisional Orbit, 423 ; a new Comet of Short Period, 

 436; Ephemeris for Comet 191 le (Borrelly), 526 

 Fayet and Schaumasse (MM.), Elements of Comet 1911/1 



(Schaumasse), 292 

 Fewkes (J. W.), the Navaho National Monument, Arizona, 



527 

 Fiegel (Max D.), der Panamakanal, 141 

 Fielden (F.), Bituminous Suction-gas Plants, 526 

 Fisher (Rev. O.), Candlemas Day, 517 

 Fisher (Prof. W. K.), Asteroidea of the N. Pacific, 462 

 Fison (Dr. A. H.), Notes on Practical Physics, 478 

 Fitzroy and Darwin, 1831-36, 1547 

 Fleming (Mrs.), Stars having Peculiar Spectra, 226 

 Fletcher (F. W. F.), Sport on the Nilgiris and in Wynaad, 



.379 

 Flint (A. S.), Stellar Parallaxes, 526 



Forbes (George, F.R.S.), Puppets : a Work-a-day Philo- 

 sophy, 4 

 Forcrand (M. de), the Ethylates of Calcium, 402 

 Forel (F. A.), Fata-Morgana, 201 

 Fouard (E.), Mechanism of Osmosis, 269 

 Fournier (M.), Existence of Coal at Franche-Comt^, Haute- 



Sa6ne, 99 

 Fowle (F. E.), Smithsonian Physical Tables, 477 

 Fowler (Prof. A.), Chemical Unity of the Cosmos, 121 

 Fowler (Prof. A.) and H. Shaw, the Less Refrangible 



Spectrum of Cyanogen, and its Occurrence in the Carbon 



Arc, 198 

 Frankel (Dr. Bernhard), Death, 84 

 Eraser (Capt. A. D.) and Dr. H. L. Duke, an Antelope 



Trypanosome, 436; Antelope infected with Trypanosoma 



gambiense, 470 

 Eraser (Dr. H. C. I.), Longitudinal Fission of the Melotic 



Chromosomes in Vicia Faba, 59 

 Frazer (Prof. J. G.), the Golden Bough : a Study in Magic 



and Religion : Part iii., " the Dying God," 203 

 Fream (the late Dr. W.), Prof. J. R. Ainsworth-Davis, 



Elements of Agriculture, 479 

 French (A. G.), Discovery of a new Element, Canadium, 



221 

 Fric (R.), Action of Heat on Nitrocellulose, 403 



