Nature, 
June 13, 1907 
L[ndex 
XXXVIl 
Change in Conductivity not Attributable to Change of 
Tonisation of Salt within the Solution, S. M. Sabat, 
230; the a Rays, Prof. O. W. Richardson, 223 ; Measure- 
ment of the Radio-chromometric Degree by the Electro- 
static Voltmeter in the Utilisation of the Réntgen Rays 
in Medicine, J. Bergonié, 287; Radio-telegraph Installa- 
tion for Signalling Across the Wash, 377; an Occurrence 
of Helium in the Absence of Radio-activity, Hon. R. J. 
Strutt, F.R.S., 390; Retardation of Electroscopic Leak 
by Means of Recognised Radio-active Substances, Dr. 
W. S. Lazarus-Barlow, 559; Theory of the Radiation 
of Incandescent Mantles, M. Foix, 575; Anode Rays, 
Messrs. Gehreke and Reichenheim, 614; New Glass 
Transparent to Rays of very Short Wavye-length, F. A. 
Lindemann and C. L. Lindemann, 614 
Radium: Radium and Geology, Prof. J. Joly, F.R.S., 7, 
294, 341; Prof. W. J. Sollas, F.R.S., 319; the Produc- 
tion of Radium from Actinium, Bertram B. Boltwood, 
54; Prof. E. Rutherford, F.R.S., 270; Radium and 
Helium, Dr. B. Walter, 102; Radium, Actinium, and 
Helium, H. S. Allen, 126; Radium and its Disintegration 
Products, Dr. Bertram B. Boltwood, 223; the Effect of 
Radium on the Strength of Threads, J. L. McKee and 
Prof. W. B. Morton, 224; see also Radiography 
Railway Engineering, Electric, H. F. Parshall and H. M. 
Hobart, 531 
Rainfall, British, Dr. Hugh Robert Mill, 5 
Rainfall in German South-West Africa, 616 
Rainfall and the Sun-spot Cycle, Rothesay, Alex. B. 
MacDowall, 488 
Rajna (Prof.), the Bologna Observatory, 41 
Rambaud (M.), Observations of the Giacobini Comet 
(19074), 528 } 
Randall MaclIver (Dr. David), Medizval Rhodesia, 369 
Random Path, the Problem of the, Prof. Reginald A. 
Fessenden, 392 
Rankin (G. A.), 
Sulphur, 424 
Ransom (Dr. W. H., F.R.S.), the Inflammation Idea in 
General Pathology, 99 
Rate of Recession of Niagara Falls, G. K. Gilbert, 607 
Rauber (A.), Occurrence of an ‘“‘ Intermetatarsal Bone ”’ 
in the Human Foot, 84 
Ray (P. C.), the Interaction of the Alkyl Sulphates with 
the Nitrites of the Allali Metals and Metals of the 
Alkaline Earths, 23; the Decomposition of Mercurous 
and Silver Hyponitrites by Heat, 575 
Reade (Mellard), Sands and Sediments, 595 
Reale Istituto Lombardo, Prize Awards of the, 540 
Record Times in Racing, a Law of, 463 
Red Spot on Jupiter, 1905-6, the, Stanley Williams, 327 
Red-light Treatment of Small-pox, Early Reference to, 
Alfred Sang, 560 
Redwood (Sir Boverton), Petroleum and its Products, 218 
Reed (Sir Edward J., K.C.B., F.R.S.), Death of, 134; 
Obituary Notice of, Dr. Francis Elgar, F.R.S., 153 
Rees (A. W.), Creatures of the Night, 76 
Rees (F. E.), Light for Intermediate Students, 436 
Rees (Prof. J. K.), Death and Obituary Notice of, 540 
Reeve (Prof. Sidney A.), the Steam-table, a Table of the 
Thermal and Physical Properties of Saturated Steam 
Vapour and of the Specific Heat of Water, 533 
Refraction, Astronomical, 538; Prof. Bakhuyzen, 539 
Reichenheim (Mr.), Anode Rays, 614. 
Reid (Dr. G.), the Nitrification of Sewage, 382 
Reinisch (R.), Petrographische Beschreibung der Gauss- 
berg-Gesteine, 224 
Religion: Science and Religion, Rev. Lord William 
Gascoyne Cecil, 126; the Peninsular Malays, I., Malay 
Beliefs, R. J. Wilkinson, 245 
Rengade (E.), Protoxide of Casium, 24; Anhydrous 
Protoxides of the Alkaline Metals, 239; Properties of 
the Alkaline Protoxides, 600 
Renouf (N.), Action of Reducing Agents on 5-chloro-3- 
keto-r : 1-dimethyl-A*-tetrahydrobenzene, 215 
Reveille (Dr. J.), Obituary Notice of Colonel Mannheim, 
422 
the Transformation of Orthorhombic 
RevIEws aNnD Our Booxsuetr. 
Symbolic Logic and its Applications, Hugh MacColl, x 
The Development of Symbolic Logic, A. T. Shearman, 1 
An Introduction to Logic, H. W. B. Joseph, 1 
Thought and Things, or Genetic Logic, James 
Baldwin, 1 
A Manual of Pharmacology, Dr. W. E. Dixon, 2 
Jan Ingen-Housz, sein Leben und sein Wirken als Natur- 
forscher und Arzt, Prof. Julius Wiesner, 3 
The Chemistry of Paint and Paint Vehicles, Clare H. 
Hall, 4 
British Rainfall, 1905, Dr. H. R. Mill, 5 
Technical Thermometry, 6 
Astronomischer Jahresbericht, A. Berberich, 6 
Zoologischer Jahresbericht fiir 1905, 6 
Great Bowlers and Fielders, G. W. 
Fry, 8 ' 
The Physiography of the River Nile and its Basin, Captain 
H: G. Lyons, 17 
The Seven Follies of Science, John Phin, 25 
Mark 
Beldam and C. B. 
A Practical Chemistry Note-book for Matriculation and 
Army Candidates, S. E. Brown, 26 
Chemistry Note-books, E. J. Sumner, 26 
The Science of Common Life, J. B. Coppock, 26 
Practical Methods of Inorganic Chemistry, Dr. F. M. 
Perkin, 26 * 
Chemical Analysis, Qualitative and Quantitative, Drs. W. 
Briggs and R. W. Stewart, 26 
Methods of Organic Analysis, Dr. H. C. Sherman, 26 
Cotton, its Cultivation, Marketing, Manufacture, and the 
Problems of the Cotton World, Prof. C. W. Burkett 
and ©. H. Poe, 27 
Illustriertes Handworterbuch der Botanik, Drs. O. Porsch 
and C. K. Schneider, 28 
Dizionario di Botanica Generali, Dr. Guglielmo Bilancioni, 
28 
First Steps in the Calculus, A. F. van der Heyden, 26 
A Manual of Hydraulics, R. Busquet, 29 
Guide to the Principal Families of Flowering Plants, J. 
Adams, 29 
The Extra Pharmacopoeia of Martindale and Westcott, 
29 
The Cambridge Natural History, vol. i., Protozoa, by Prof. 
Marcus Hartog ; Porifera (Sponges), Igerna B. L. Sollas; 
Ceelenterata and Ctenophora, Prof. S. J. Hickson, 
F.R.S.; Echinodermata, Prof. E. W. MacBride, F.R.S., 
oi 
Memoirs of the Asiatic Society of Bengal, 1905-6, A. 
Ernest Crawley, 41 
First Report of the Natal Government Museum for the 
Year ending December 31, 1904, 42 
Annals of the Natal Government Museum, 42 
Draft Board of Trade Regulations with Respect to Weights, 
Measures, and Weighing Instruments, 42 
Mythes et Légendes d’Australie, A. van Gennep, 49 
The Physiology of Plants, a Treatise upon the Metabolism 
and Sources of Energy in Plants, Dr. W. Pfeffer, 49 
Steam Turbines, with an Appendix on Gas Turbines and 
the Future of Heat Engines, Dr. A. Stodola, 50 
Steam Turbine Engineering, T. Stevens and H. M. Hobart, 
50 
Modern Turbine Practice and Water-power Plants, John 
Wolf Thurso, 50 
Hydraulic Motors with Related Subjects, including Centri- 
fugal Pumps, Pipes, and Open Channels, Prof. Irving 
P. Church, 50 
Turbines, W. H. Stuart Garnett, 50 
Modern Steam Turbines, vol. i., the Schulz Steam Turbine, 
50 
Ueber chitindse Fortbewegungs-Apparate einiger (insbeson- 
dere fussloser) Insektenlarven, Dr. Wilhelm Leisewitz, 
W. F. Kirby, 54 
Map of the British Isles, W. and A. K. Johnston, 54 
Die physikalischen Institute der Universitat Gottingen, 
Dr. J. A. Harker, 55 
Glossina palpalis in its Relation to Trypanosoma 
gambiense and other Trypanosomes, E. A. Minchin, 
A. C. H. Gray, and F. M. G. Tulloch, E. A. Minchin, 
56 
Contributions to the Ethnology of the 
Swanton, Dr. A. C. Haddon, F.R.S., 69 
Dictionary of Philosophy and Psychology, 73 
The Human Epic, the Prehistoric Story of Mankind, John 
Frederick Rowbotham, 73 
Haida, J. R. 
