432 
WEATORE 
[Maxcu 4, 1897 
spectrum (see pp. 347, 370). (3) On behalf of Mr. J. D- 
van der Waals, junr., some observations on the law of corre- 
sponding states, in which the results of an investigation con- 
cerning alcohol and ether by Battelli are compared with those 
arrived at by Young.—Prof. Lorentz, on the entropy of a gas. 
The author considers the connection between Boltzmann’s H- 
function and the entropy.—Prof. Schoute, on the position of 
the sixteen foci of a circular cubic and a bicircular quartic. 
DIARY OF SOCIETIES. 
THURSDAY, Marcu 4. 
Rovat Society, at 4.30.—Experiments on the Absence of Mechanical 
Connection between Ether and Matter: Prof. Lodge, F.R.S.—Second 
Report on a Series of Specimens of the Deposits of the Nile Delta. 
Communicated by desire of the Delta Committee : Prof. Judd, F.R.S.— 
The Palzolithic Deposits at Hitchin and their Relation to the Glacial 
Brodit: Clement Reid.—Luminosity and Photometry: Prof. J. B. Hay- 
craft. 
Roya. InstiTuTION, at 3.—Greek History and Extant Monuments : 
Prof. Percy Gardner. 
Society or ArTS, at 8.—The Mechanical Production of Cold: Prof. James 
A. Ewing, F.R.S. 
LinNEAN Society, at 8.—Ona Trichoderma parasitic on Pedlia epiphylia, 
Corda: WG. P. Ellis.—New Species of Pericheta from New Britain, 
&c. : Dr. W. B. Benham. 
CHEMICAL SOCIETY, at 8. 
Sanirary INSTITUTE, at 8.—Objects and Methods of Inspection: Dr. J. 
F. J. Sykes. 
Camera Cuvs, at 8.15. Captain Abney, C.B., F.R.S. 
FRIDAY, Marcu 5. 
Rovat INSTITUTION, at 9.—Some Curiosities of Vision : Shelford Bidwell, 
F.R.S. 
Geotogists’ AssociaTion, at 8.—Some Properties of Precious Stones: 
Prof. Henry A. Miers, F.R-S. 
SATURDAY, Marcu 6. 
Royat InstiTuTION, at 3.—Electricity and Electrical Vibrations: Lord 
Rayleigh. : 
Essex Fiecp Crus (at Buckhurst Hill), at 7.—The Post-Pliocene Non- 
Marine Mollusca of Essex; A. S. Kennard and B. B. Woodward.— 
Variation of Lepidoptera: J. W. Tutt. 
MONDAY, Marcu 8. 
Impertat InsTITUTE, at 8.30.—Imperial Aid to Solar Research, with an 
aces of Recent Eclipse Expeditions: J. Norman Lockyer, C.B., 
F.R.S. 
Rovat GEOGRAPHICAL SOCIETY, at 8.30.—Recent Discoveries South of 
Hudson Bay: Dr. Robert Bell. 
Sanirary INSTITUTE, at 8.—Factories, Workshops, and Offensive Trades : 
Prof. A. Bostock Hill. 
Camera Cxup, at 8.15.—Some Recent Investigations relating to X-Ray 
Work : Campbell Swinton. 
TUESDAY, Marcn o. 
Rover INSTITUTION, at 3.—Animal Electricity: Prof. A. D. Waller, 
BRESe 
Royvat HorticuLTurRaAL Sociery, at 1.—Microscopic Gardening. 
ANTHROPOLOGICAL INSTITUTE, at 8.30. 
PHARMACEUTICAL SOCIETY, at 8. 
{nsTITUTION OF CiviL ENGINEERS, at 8.—Papers to be further discussed : 
The Main Drainage of London: J. E. Worth and W. Santo Crimp.— 
The Purification of the Thames: W. J. Dibdin. — Paper to be read, 
time permitting : The Mond Gas Producer Plant and its Application : 
H. A. Humphrey. 
Rovat PuootoGrapuic Society, at 8.—Demonstration on the Making of 
Pictures : W. L. Wyllie. 
Royat Vicroria HALL, at 8.30.—Cyprus : A. H. Smith. 
WEDNESDAY, Marcu to. 
Society oF Arts, at 8.—The Prevention of Fires due to the Leakage of 
Electricity : Frederick Bathurst. 
GFoLOGICAL Society, at 8.—Volcanic Action in Guatemala in_ relation to 
Earthquakes in the British Isles: A. Gosling.—The Red Rocks near 
Bonmahon on the Coast of Co. Waterford : F. R. Cowper Reed.—On the 
Depth of the Source of Lava: J. L. Lobley. 
THURSDAY, Marcu 11. 
Royat SOcIETY, at 4.30. 
Rovac INstTiTuTION, at 3.—Greek History and Extant Monuments : Prof. 
Percy Gardner. 
Soctety oF ARTS, at 4.30.—Prevention of Famine in India: Sir Charles 
Altre Elliott, K.C.S.1. 
MATHEMATICAL SOCIETY, at 8.—On a Law of Combination of Operators 
bearing on the [heory of Continuous Transformation Groups: J. E 
Campbell.—A System of Circles associated with a Triangle: Prof. 
Steggall. 
INSTITUTION OF ELECTRICAL ENGINEERS, at 8.—On some Repairs to the 
South Ainerican Company's Cable off Cape Verde, 1803 and 1895: H 
Benest. 
Camera Crus, at 8.15.—Forty Years Mountaineering: Hon. Justice 
Wills. 
FRIDAY, Marcu 12. 
Roya INSTITUTION, at 9.—The Source of Light in Flames: 
Smithells. 
Puysicat Society, at 5.—A Mechanical Cause of Homogeneity of Struc- 
ture and Symmetry Geometrically investigated, with special application 
to Crystals and to Chemical Combination (illustrated by Models): 
William Barlow. 
NO. 1427, VOL. 55 | 
Prof. A. 
Rovat ASTRONOMICAL SOCIETY, at 8. 
MALACOLOGICAL SOCIETY, at 8. 
ANATOMICAL Society (University College), at 4. 
InsTITUTION OF CiviIL ENGINEERS, at 8.—The Inverness Section of the 
Inverness and Aviemore Railway: H. F. Brand. 
SATURDAY, Marcu 13. 
Roya InstTiTuTION, at 3.—Electricity and Electrical Vibrations : Lord 
Rayleigh. 
Roya Boranic SoOciETY, at 4. 
BOOKS, PAMPHLETS, and SERIALS RECEIVED. 
Booxs.—Les Piles Electriques : Ch. Fabry (Paris, Gauthier-Villars).—A 
Study of the Sky: Prof. H. A. Howe (Macmillan).—Journal of Malacology, 
Vol. v. (Dulau).—The Universal Electrical Directory, 1897 (Alabaster).— 
Whitaker's Titled Persons, 1897 (Whitaker).—Remarkable Eclipses : W. T. 
Lynn, 2nd edition (Stanford).—Remarkable Comets : W. T. Lynn, sth 
edition (Stanfurd).—Celestial Motions: W. T. Lynn, oth edition (Stan- 
ford).—Relics of Primeval Life: Sir J. W. Dawson (Hodder).—Domestic 
Science Readers: V. T. Murché, Book vy. (Macmillan).—Le Cause 
Premiere; E. Ferriére (Paris, Alcan).—A New Poultry Guide for British 
Farmers and others: K. B. Baghot-De la Bere (Seeley).—Untersuchungen 
iiber den Bau der Cyanophyceen und Bacterien: Dr. A, Fischer (Jena, 
Fischer).—Calendario del Santuario di Pompei, 1897 (Valle di Pompei).— 
Contributions to the Analysis of the Sensations: Dr. E. Mach, translated 
by C. M. Williams (Chicago, Open Court Publishing Company).—Re- 
searches upon the Antiquity of Man: H. C. Mercer (Ginn).—Vorlesungen 
iiber Mathematische Physik: J. Kirchhoff, Vierte Auflage, herausgegebem 
von Prof. Dr. W. Wien, Erster Band : Mechanik (Leipzig, Teubner). 
PampuLets.—Report for 1896 on the Lancashire Sea- Fisheries Laboratory 
at University College, Liverpool (Liverpool).—The Culture of Vegetables 
for Prizes, Pleasure and Profit : E. K. Toogood (Ulverston, Holmes). 
SERIALS.—Familiar Wild Flowers: F. E. Hulme, Part 1 (Cassell).— 
English Illustrated Magazine, March (198 Strand).—Longman’s Magazine, 
March (Longmans).—Himmel und Erde, February (Berlin).—Chambers'> 
Journal, March (Chambers).—Contemporary Review, March (Isbister).— 
Good Words, March (Isbister).—Sunday Magazine, March (Isbister).— 
Transactions and Proceedings of the Botanical Society of Edinburgh, Vol. 
xx. Parts 2 and 3 (Edinburgh).—Brain, Part 76 (Macmillan).—Century 
Magazine, March (Macmillan).—Scribner’s Magazine, March (Low).— 
Muret-Sanders Encyclopadisches Wérterbuch, Lfg. 1, Teil 2 (Grevel).— 
Memoirs and Proceedings of the Manchester Literary and Philosophical 
Society, Manchester, 1806-7, Vol. 41, Part 2 (Manchester).—Lloyd’s 
Natural History: Butterflies, W. F. Kirby, Parts 7 and 8 (Lloyd).— 
Astrophysical Journal, February (Chicago).—J ournal of Physical Chemistry, 
Nos. 3, 4, 5 (Ithaca). 
CONTENTS. 
The Need of Organising Scientific Opinion. I. 
PAGE 
By Dr. Henry E. Armstrong, F.R.S. .... . 409 
Compressed Air Illness. By F.W.T. .... 41T 
The Zoological) Recordmys') .%. . - a Gate Cte 
Our Book Shelf:— 
Chambers : ‘*The Story of the Weather” .... . 415 
Permain and Moore: ‘Applied Bacteriology.”— 
Dr. A. A. Kanthacky. . .. . . . eee 
“© Ostwald’s Klassiker der exakten Wissenschaften” . 413 
Thorp: ‘‘ Inorganic Chemical Preparations”. . . . 414 
“ The Practical Photographer”’ «say ee 
Schooling: ‘* Life Assurance Explained ” cst ee 
Paget : ‘‘ Wasted Records of Disease” . . . ? 414 
Letters to the Editor:— 
Specific Characters.—Prof. T. D. A. Cockerell. . 414 
The Force of a Ton.—O. J. L. ... . hag ELS 
Immunity from Snake-Bite.—Dr. Dawson Williams 415. 
Copper and Oysters:—W. F. Lowe ...... 415. 
Miss Kingsley’s Travels in Africa. (J//ustrated.). . 
Notes’ .. 5c RMEIIERIRI So r,s) 5) oy rete RRS 
Our Astronomical Column:— 
The Orbit of Jupiter’s Fifth Satellite ....... 420 
The Ellipticity of the Disc of Mars . . . .... . 421 
The Rotation\ofiWemnsie =< > - . . cae eee 
Photographic Reproduction of Colours. .... 422 
On the Alternations of Generations in Plant Life. 
By Right Hon. Sir Edw. Fry, F.R.S. .. . 422 
University and Educational Intelligence ..... 427 
Scientific Serials oc 1 RBRORORIPPEED oS 6 
Societies and Academies ......... 
Diary of Societies 4 1 (ADO BO dealer 
Books, Pamphlets, and Serials Received ..... 432 
