Index 



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Observations on Cats, Augustus D. Waller, F. R.S., 309; 

 Electrification of tJlass, F. Ilodson, 319 ; Electromagnetic 

 Properties of Convection Currents, Prof. A. Righi, 324 ; 

 " Acker " Fusion Process for the Electrolytic Production of 

 Caustic Alkali and Chlorine at Niagara Falls, 324 : the 

 Rhodin Cell Electrolytic Alkali Works at Sault Sainte Marie, 

 Ontario, B. E. F. Rhodin, 593; Apparatus for Automatically 

 Registering Discharges in the Atmosphere, J. Fenyi, 335 ; 

 Instruments et Methodes de Mesures Electriques Indus- 

 trielles, H. Armagnat, 342 ; on the Possibility of Producing 

 both kinds of Electrification in Sealing Wax by Rubbing it 

 with Silk, J. D. T. Morris, 349 ; New Form of Electric Re- 

 sistance Laboratory Furnace, Prof. Ilolborn, 350 ; Variation 

 of the Electromotive force and the Temperature Coefficient of 

 the Daniell Cell with the Concentration of the Zinc Sulphate 

 Solution, J. Chaudier, 3^9 ; Primary Batteries, their Theory, 

 Construction and Use, W. R. Cooper, 362 ; the Stratification 

 of Hydrogen, Sir William Crookes, F. R S., at the Royal 

 Society, 375 ; Note on Electric Charging and Discharging at 

 a Distance, Hertha Ayrton, 390; Radio-activity anl the 

 Electron Theory, Sir William Crookes, F.R.S., at the Royal 

 Society, 400 ; Electric Thermometer, George Meslin, 407 ; 

 Conductivity of Liquid Dielectrics under the Influence of the 

 Radium and Rontgen Rays, P. Curie, 40S ; Electrical Manu- 

 facture of Carbon Bisulphide, 420 ; Electrodes Manufactured 

 by the Acheson Graphite Company (Niagara Falls). 420 ; 

 Electric Shocks, Mr. Trotter, 420 ; the Laws of Electro- 

 magnetism for Bodies in Motion, R. Blondlot, 421 ; Applica- 

 tion of Duddell's Singing Arc to the Measurement of Small 

 Coefficients of Self Induction, Paul Janet, 431 ; Capillary 

 Electrometer, Pierre Boley, 431 ; the Resistance of the Red 

 Globules of the Blood Determined by its Electrical Con- 

 ductivity, MM. Calugareanu and Victor Henri, 432 ; 

 Electrical Lamp for Use with the Microscope, 443 ; an 

 Elementary Treatise on Alternaiing Currents, W. G. Rhodes, 

 463 ; Temperature Variation of the Electrical Resistance of 

 Pure Metals, W. Williams, 477 ; .Suspected case of Electrical 

 Resonance of Minute Metal Particles lor Light Waves, a New 

 Type of Absorption, Prof. R. W. Wood, 477; Experiments 

 for Discovering whether Faraday's Law may be Considered 

 as Applying to Gases, D. L. Chapman and F. A. Lidbury, 

 479 ; Electromagnetic Theory of the Aurora Borealis, Charles 

 Nordmann, 479 ; the Distiibuiion of Magnetism as Affected 

 by Induced Currents in an Iron Cylinder when Rotated in a 

 Magnetic Field, Ernest Wilson. 502 ; Method for Finding 

 the Velocity of Underground Water, Prof. Slichter, 51S; 

 Leichtfassliche Vorlesungen viber Eleklrizilat und Licht, I'rof. 

 Dr. G. Jaumann, 532 ; American Institute of Electrical 

 Engineeis (Committee's Report and Resolution in Favour of 

 the Metric System, 540 ; {a) on the Conductivity of the 

 Vapours of the Alkali Metals ; \h) Induced Radio-activity, 

 Prof. J. J. Thomson, 550 ; a Self-recording Atmospheric 

 Electroscope, G. Le Cjidet, 551 ; Les Theories electriques 

 de J. Clerk Maxwell, Etude historique et critique, M. P. 

 Duhem, Prof. W. McF. Orr, 555 ; Outlines of Electro- 

 chemistry, H. C. Jones, 557 ; New Application of the Electric 

 Furnace, C. B. Jacobs, 572 ; Electric Heating Apparatus, 

 Dr. R. A. Lehfeldt, 579 ; Use of Kathode Rays in Alternate 

 Current Work, j. T. Morris, 579 ; Growth of Electric 

 Currents in an Inductive Circuit, J. T. Morris, 579 ; the Uses 

 of Electricity in Stimulating the Growth of Plants, Dr. Selim 

 Lemstrcim, 593 ; the Crawlord-Voelker Electric Lamp, J. R. 

 Crawford, 593 ; Increase of Electrical Resistivity Caused by 

 .\lloying Iron with Various Elements to the Specific Heat of 

 those Elements, Prof. W. F. Barrett, F.R.S., 601 ; Eleclro- 

 motive Forces, M. Berlhelot, O03 

 Elementary School Mathematics, John S. Yeo, 31S 

 Elevation of Meteors, Determination of the, 113 

 Ellipse, Formula for the Perimeter of an, II. Tomkys, 536 

 Elsden (J. V.), Roads : their Construction and Maintenance, 



149 

 Encyclopedic Scientifique des Aide-Mcmoire, Le Vin, Henri 



Astruc, 245 

 " Energetic " View of Existence, An, Wilhelm Ostwald, 265 

 Energy, the Thermal Measurement of, E. II. Griffiths, F.R S., 



342 

 Engineering : on Explosions of Steam-pipes due to " Water- 

 hammer," C. E. Stromeyer, 23, 497 ; Magnetic Iron Ore as 

 a Material for Concrete Blocks, Dr. H. Warlh, 31 ; the 

 Mechanical Triumphs of the Ancient Egyptians, Commander 



F. M. Barber, 78 ; the Use of the Wire Saw for Quarrying, 

 S4 ; Applications of Eleclriciiy to Railways, Mr. Langdon, 

 86 ; Electrical Traction on Railways, W, M. Mordey and 

 B. M. Jenkin, 399 ; Remarkable Motor Car Performance of 

 M. Fournier, 86 ; a New Form of Permeameter for Testing 

 the Magnetic (^)ualities of Iron and Steel in Bulk, C. V. 

 Drysdale, no; Roads: their Construction and Maintenance, 

 A. Greenwell and J. V. Elsden, 149 ; Roads and National 

 Welfare, Prof. J. P. O'Reilly, 222 ; Guide Pratique pour les 

 Calculs de Resistance des Chaudieres a Vapeur et I'Essai des 

 .Materiaux Emplo)es, G. Huin and E. Maire, 150; Motive 

 Power from Blast Furnace Gases, Bryan Donkin, 179; 

 Electrical Engineering Testing, (!. I). Aspinall Parr, 242 ; 

 Failure of Certain Cast-Steel Dies used in the Manufacture of 

 Drawn Tubes, Dr. George Wilson, 263 ; the Reclamation of the 

 Zuiderzee, W. II. Wheeler, 275 ; Modern Machine; Methods, 

 H. F. L. Orcutt, 279 ; La Tour Eiffel en 1900, M.G Eiffel, 290; 

 A Treatise of Hydraulics, Henry T. Bovty, 315 ; iTslruments 

 et Methodes de Mesures Electriques Industrielles, H. 

 Armasnat, 342 ; a New Italian Engineering Journal, La 

 nuova Ressegna tecnica internazionale, 349; ^licroscopical 

 Examination of Alloys of Copper and Tin, VVilliam Campbell, 

 at the Institution of Mechanical Engineers, 354; a Doubtful 

 Development of Locomotive Engineering, 370 ; Annual Meet- 

 ing of the Institute of Mechanical Engineers, 396 ; Vessels 

 with Turbine Machinery, 403 ; Death of Bryan Donkin, 442 ; 

 Obituary Notice of, 495 ; Experimental Locomotive with 

 Water-tube Boiler, Dugald Drummond, 473 ; l\.e>istance des 

 Materiaux et Elements de la Theorie Maihem.ilique de 

 I'Elasticite, Aug. Fiippl, 505; Method for finding the Velocity 

 of Underground Water, Prof. Slichter, 51S: American In- 

 stitute of Electrical Engineers' Committee's Report and 

 Resolution in Favour of the Metrif System, 540 ; the Balanc- 

 ing of Engines, W. E. Dalby, 556 : Civil Engineering as 

 applied in Construction, Leveson F. Vernon llarcourt, 582 ; 

 the Sea-coast, (i) Destruction, (2) Littoral Drift, (3) Protec- 

 tion, W. H. Wheeler, Supp. April 24, 1902, iv 



England : the Coal-tar Colour Industry in Germany and 

 England, 138 ; Marconi's Signalling from England to 

 America by Wireless Telegraphy, 158; the Scenery of Eng- 

 land and the Causes to which it is Due, Right Hon. Lord 

 Avebury, 490; the Sea-coast of England, W. H. Wheeler, 

 Supp. April 24, 1902, iv 



English (D.), Photography for Naturalists, 33 



Engravings of the Stone Age, a Gallery of, 299 



Entomology : the Red Spruce Pest Dcntrocloints piccaperda. 

 Dr. A. D. Hopkins, 13; Entomological Society, 22, 118, 

 141, 191, 311, 405, 503, 549 ; Violet Pests, F. H. Chittenden, 

 60; Experimentelle entomologische Studien vom physikalisch- 

 chemischen Standpunkt aus, Piof. P. Bachmeljew, 101 ; on a 

 specimen of Trac/iyphoiiis iiiyrmeiopliilus, Seidl., with False 

 Mandibles, F. B. Jennings, 118 ; on a Collection of Trinidad 

 Butterflies including several New Species, W. J. Kaye, 118; 

 on Specimens of Parnassiia Appollo taken in .Spain, 

 Switzerland, France and Italy, Dr. Chapman, iiS ; Butter- 

 flies from the Sierra Albarracin, Spain, Dr. Chapman and 



G. C. Champion, 141 ; on the Earwigs, Cockroaches, Man- 

 tids and Stick-insects collected by Dr. Donaldson Smith in 

 North-east Africa, J. A. G. Rehn, iSo; on Pupa-cases of 

 Salurnia piavoi'iia with more than one opening, C. P. Pickett, 

 191 ; on a number of Colias hyalc bred from Ova, J. II. 

 Carpenter, 191 ; Colours of Butlei flies not due to Dif- 

 fraction, W. B. Croft, 19S ; the Colours of Wings of 

 Butterflies, 344 ; W. B. Croft, 391 ; Mimicry amongst 

 Bornean Insects and Spiders, R. Shelford, 211 ; a Luminous 

 Centipede, Rose Ilaig Thomas, 223 ; J. E. Barnard, 

 299 ; Birds capturing Butterflies and Aloths in Flight, 

 Annie E. Mackay, 247, 486; Oswald H. Latter, 273 ; Lilian 

 J.Veley, 299,392; A. H. Hamm, 366 ; C. G. Seligmann, 366 ; 

 Howard, Fox, 366 : John Hartley Durrani, 392 ; F. Finn, 

 415; a Correction, 5S7 ; Dr. Ad. Nicolas, 415; Prof. 

 Edward B. Poulton, F. R.S., 465 ; Insect Life : Souvenirs 

 of a Naturalist, |. II. Faber, 250; Instrument by which 

 Silk-producing Moths of Australian Genus Anihei;ea Cut 

 their Way out of their Hard Cocoons, F. B. Dodd, 257; 

 Monograph of the Coccid;e of the British Isles, Robert 

 Newstead, 295 ; Mimicry in the Coleoptera, Rev. Canon 

 Fowler, 311 ; Dragon-F'ies taken in Britain, W. J. 

 Lucas, 372; Can Bees Hear? F. W. L. Sladen, 372; 

 Diminution of the Habitat in Britain of the Swallow- 



