XXil 
Chemistry (continued) : 
Day and Sosman, 227; Physical Properties of Cyclo- 
hexanol, M. de Forcrand, 339; Optical Determinations 
at High Pressures, Dr. W. Wahl, 363; Density and 
Compressibility of Nitrosy! Chloride, E. Wourtzel, 547 
Physiological: Probleme der physiologischen und patho- 
logischen Chemie, Prof. Dr. O. von Fiirth, 422 
of Plants: Chemistry of Doryphora sassafras, J. M. 
Petrie, 391; Hydrocyanic Acid in Plants, Dr. J. M. 
Petrie, 391 
Practical: Text-book of Practical Chemistry for Tech- 
nical Institutes, Dr. A. E. Dunstan and F. B. Thole, 
291; Practical Chemistry for Medical Students, Dr. 
A. C. Cumming, 291; Practical Chemistry for En- 
gineering Students, A. J. Hale, 578; a School 
Chemistry, F. R. L. Wilson and G. W. Hedley, 578 
Synthetical: Syntheses: Butyrone, MM. Amouroux and 
Murat, 209; Syntheses by means of mixed Organo- 
metallic Derivatives of Zinc, E. E. Blaise, 235; 
Synthesis of Nitriles in the Cyclanic Series, V. 
Grignard and E. Bellet, 495; Syntheses by means of 
mixed Organo-metallic Derivatives of Zinc, E. E. 
Blaise, 495; Synthesis of Nitrosyl Chloride and Atomic 
Weight of Chlorine, E. Wourtzel, 625 
Technical: Approximate Value of the Molecular Weight 
of India-rubber, P. Bary, 261; Technical Methods of 
Chemical Analysis, Prof. G. Lunge, Dr. C. A. Keane, 
341; Bicher der Naturwissenschaft: Chemie und 
Tecknik, Dr. G. Bugge, Prof. Dr. S. Giinther, 398; 
Chemisch-technisches Praktikum, Dr. W. Moldenhauer, 
398 
Chemists, Famous, E. Roberts, 32 
Child, Food and the, 280 
China, Mineral Wealth and Geology of, Chung Yu Wang, 
615; China, Korea, and Japan, Permanent Agriculture 
in, Dr. F. H. King, 500 
Chlorine, Atomic Weight, G. Baume and F. L. Perrot, 677 
Chlorous Acid, M. Laségue, 547 
Cholera and its Treatment, Prof. L. Rogers, 136 
Chronograph, an Electro-, with Synchronised Sparks, A. 
Blondel, 209 
Citric Acid, World’s Supply, Prof. R. Peppert, 226 
Civil Service Appointments : Royal Commission, 76 
Clare Island Survey: Algz and Marine Diatoms, W. West, 
641 
Climatology : Temperature in Spain, Dr. A. B. Rosenstein, 
230; Climate of Porto Rico, Dr. O. L. Fassig, 231; 
Climate of the S.E. part of the North Sea, Dr. J. P. van 
der Stok, 588 
Clouds and Shadows, C. Tilden Smith, 168; Dr. T. C. 
Porter, 244; C. J. P. Cave, 268; Cyril Crossland, 322; 
Dr. T. C. Porter, 348; Alice Everett, 426, 459 
Coal: Coal Supply, 117; Coal Formation, J. J. Stevenson, 
513; Coalfields of West Nelson, N.Z., Dr. Henderson, 644 
Coal Mines: Prevention of Explosions in Mines, Dr. J. 
Harger, 406; Coal Mine Accident at Cadeby Pit, York- 
shire, 482; Coal-dust Explosions in Mines Committee’s 
Report, 562 ; Committee to investigate Spontaneous Com- 
bustion of Coal in Mines, 585 
Cod, Development of the, Prof. A. Meek, 416 
Colloids: die Bedeutung der Kolloide fiir die Technik, 
Prof. Kurt Arndt, 28; General Theory of Colloidal Solu- 
tions, W. B. Hardy, 311 
Colorado, Biological Survey of, M. Cary, 615 
Colour: Confusion Test for Colour Blindness, Dr. G. J. 
Burch, 130; Colour-music, Prof. A. W. Rimington, 166; 
Hunterian Lectures on Colour-vision and Colour-blind- 
ness, Prof. F. W. Edridge-Green, 476; Experiments with 
Rotating Films, C. V. Bovs, 493; Negative After-images 
and Successive Contrast with Pure Spectral Colours, 
Prof. A. W. Porter and Dr. F. W. Edridge-Green, 494; 
Colour-blindness and the Trichromatic Theory, Sir W. 
de W. Abney, 494; Contrast Colours in the Use of Zone- 
plates, W. B. Croft, 581 
Comets: Cometary Phenomena, Prof. K. Bohlin, 17; 
Statistics, M. Borrelly, 199; Spectra, Prof. A. Fowler, 
227; Orbits, Prof. W. Pickering, 617; a Comet-like 
Object, Mr. Hansen, 277; Halley’s Comet : Photographs, 
MM. Sotome, Hoasi, and Toda, 147; Prof. Riccd, 644; 
Holmes’s Comet, Dr. Zwiers, 644; Comet 1911¢ (Brooks), 
Prof. Millosevich, 42; A. de la B. Pluvinel and F. Baldet, 
Lndex 
Nature, 
October 24, 1912 
338; Prof. Barnard, 616; Comet ig11e (Borrelly), M. 
Schaumasse, 305; Comet 1911f (Quénisset), Elements, 
Dr. Ebell, 42; Comet 1911h (Schaumasse), Dr. Schau- 
masse, 42 
Concrete: Concrete High Dams of Great Length, R. 
Ryves, 93; Non-corrosion of Rag Bolt found in a Slab 
of Concrete, 227; Concrete Mixing, 355 
Concrete, Reinforced: Strength of Piles, F. H. Jeffree, 69; 
Design, O. Faber and P. G. Bowie, 501; Compression 
Member Diagram, C. F. Marsh, 549 
Copper and its Alloys in Early Times, Prof. W. Gowland, 
F.R.S., 98; Copper Deposits of the Appalachian States, 
W. H. Weed, 617 
Copyright, Photographic, G. E. Brown and A. Mackie, 631 
Coral, Endopachys grayi, from Persian Gulf, Prof. S. J. 
Hickson, 131 
Cornwall: Joint Meeting of 
Societies, 353, 591 
Corrosion, C. Chappell, 278; J. N. Friend, J. Ll. Bentley, 
and W. West, 278 
Corundum Deposits in Madagascar, A. Lacroix, 131 
Cotton-combing Hand Cards, Ling Roth, 353; Cotton 
Cultivation: Papers and Reports, Dr. W. R. Dunstan, 
F.R.S., 427 
Crocker Land Expedition, 206, 403 
Crocodilian Remains from Upper Tertiaries, C. Rovereto, 
Learned and Technical 
539 
Croydon Roman Exhibits, 510 
Cryoscopy in Camphor, M. Jouniaux, 417 
Crystallo-chemical Analysis, Prof. E. von Fedorow, Dr. 
A. E. H. Tutton, F.R.S., 503 
Crystallography: Quartz Twins, Dr. J. Drugman, 77; 
Crystallisation of Metals, Dr. Cecil H. Desch, 359; 
Optical Investigations of Crystallised Nitrogen, Argon, 
Methane, and some simple Organic Compounds at Low 
Melting Points, Dr. W. Wahl, 494; Isomorphism of 
Irido- and Rhodio-chlorides of Alkali Metals, A. Duffour, 
74 
Curie’s Constant in the Ferromagnetic State, J. R. Ash- 
worth, 503, 555 3 
Curves: the “J.R.B.” Patent Adjustable Curve Ruler, 477; 
Convex Closed Curves, &c., C. Jordan and R. Fiedler, 
669 
Cyclones, Geometrical Constructions for finding Motion of, 
Prof. T. Okada, 68 
Dairy Cattle and Milk Production, Prof. Clarence H. 
Eckles, 163 
Daylight : Daylight Saving Bill, 247; Daylight, Prof. E. L. 
Nichols, 249; Artificial Daylight, T. E. Ritchie, R. B. 
Hussey, J. E. Ives and Dr. K. Mees, 612; Prof. W. M. 
Gardner, 631 
Deaths: Allen (J. Bernard), 351; André (Prof. Charles), 
403, 429; Austin (B. J.), 352; Boisbaudran (F. Lecoq de), 
352; Borup (George), 224; Bosanquet (R. H. M., 
F.R.S.), 613; Brothers (A.), 666; Bullen (Rev. Robert 
Ashington), 667; Chatin (Prof. Johannis), 538; Craig 
(Prof. John), 666; Dean (Alexander), 666; Dent (Clinton 
Thomas), 666; Divers (Prof. Edward, F.R.S.), 142, 170; 
Donaldson (Harold), 585; Dunn (James), 532; Festing 
(Major-General E. R., C.B., F.R.S.), 299; Forel (Prof. 
Francois Alphonse), 613, 638; Fouillée (Alfred), 613; 
Franklin-Adams (John), 639; Friihling (Prof.), 273; 
Gillen (Francis James), 666; Gray (John), 223, 246; 
Hawkins (E. C.), 196; Hobbs (Dr. Perry L.), 196; 
Hodgson (A. E.), 39; Hodgson (Dr. Shadworth H.), 403; 
Hume (Allan Octavian, C.B.), 584; Jones (Dr. 
Humphrey Owen, F.R.S.) and Mrs. Jones, 638; Julian 
(Henry Forbes), 325; Knox (Alexander), 428; Lang 
(Andrew), (A. E. Crawley), 532; Lebedew (Prof. P. N.), 
118; Leeds (Charles Edward), 118; Lévy (Lucien), 613; 
McClintic (Dr. T. B.), 667; Montgomery (Dr. T. H.), 
118; Miinch (Prof. Wilhelm), 90; Ogle (Dr. William), 
172; Pacinotti (Prof. A.), 90; Paine (Prof. John Alsop), 
585; Poincaré (Henri), 535: Richards (Prof. Eugene 
Lamb), 640, 666; Richardson (Dr. M. H.), 666; Rogers 
(Dr. T. L.), 613; Rotch (Prof. A. Lawrence), 171, 195; 
Sanger (Dr. Charles Robert), 38; Shelford (R. W. C.), 
428; Smith (Dr. John Bernhardt), 90; Stiffe (Captain 
Arthur William), 667; Strasburger (Prof. Eduard), 379; 
