PARIS. Academy of Sciences, Nov. 4.-M. Des Cloizeaux, President, in the chair.-Instrument for measuring the coefficient of elasticity of metals, by Mr. Phillips. This is a large spiral spring and balance wheel, the former made of the metal to be examined. -Rôle and mechanism of the local lesion in infectious diseases, by M. Ch. Bouchard. Whereas in absolute immunity, there is, after inoculation, neither general infection nor local lesion, and in total absence of immunity, general infection, often without local lesion, in relative, normal, immunity there is local lesion mostly without general infection; in the last case, as experiment shows, it is not the local lesion that causes the immunity, but vice versa. Inoculating vaccinated and unvaccinated rabbits with pyocyanic Bacillus, the author found, in the former, rapid appearance of leucocytes, all having many Bacteria, which were soon resolved into granulations, and in sixteen hours were quite gone ; while the free Bacteria soon decreased in number. In the other animals, few leucocytes, no Bacilli in them, and free Bacteria multiplying.-Statistics of preventive treatment of rabies, from February 9, 1888, to September 15, 1889, at the Pasteur Institute of Rio de Janeiro (Dr. Ferreira dos Santos), by the Emperor of Brazil. Of 156 who underwent full treatment, only one died, and not certainly from rabies; this gives a mortality of 064 per cent.-On the velocity of wind at the top of the Eiffel Tower, by M. A. Angot. Three months' observations give a mean of 705 m. as compared with 2'24 in. at the Central Meteorological Office (21 m. from the ground). While at low stations there is a minimum at sunrise and a maximum at I p.m., the Eiffel (like mountains) showed a minimum about 10 a.m. and a maximum at II p.m. (while at midday there was but a slight upward bend of the curve).-On phenyl-thiophene, by M. A. Renard. This is prepared by passing through an iron tube, heated to dark redness, vapours of toluene and of sulphur, and distilling the condensed product. Analysis gave the formula CH-CH3S. With bromine, nitric acid, and sulphuric acid, substitution products are obtained. Researches on digitaline and tanghinine, by M. Arnaud. By heating digitaline with baryta-water to 180° for several hours, it combines with water yielding the compound C31H52011, from which the formula C3H5O10 is deduced for digitaline. The formula of tanghinine, similarly deduced, is C-HO. This formula differs from that of Schmiedeberg for digitaline, viz. CHO-.-Studies on the embryology of the axolotl, by M. F. Houssay. He describes the mechanics of segmentation, the origin and development of the peripheral nervous system, and the morphology of the head.-On the cytoplasm and the nucleus in Noctiluci, by M. G. Pouchet. Flemming's chromatine seems to be formed of two substances, chromatoplasm and hyaloplasm; and the proportion of the former increases as gemmation proceeds; hence the more and more lively colour of the segmented nuclei.-On the parasitic castration of Typhlocyba by a Hymenopterous larva (Aphelopus melaleucus, Dalm.), and a Dipterous larva (Atelenevra spuria, Meig.), by M. A. Giard. In T. hippocastani, the eight terminal branches of the penis are reduced to six, four, or three. A pair of curious invaginations on the ventral surface of the body are also shortened.- Action of serum of diseased or vaccinated animals on pathogenic microbes, by MM. Charrin and Roger. Operating with the pyocyanic Bacillus and rabbits, they found the serum of vaccinated animals more adverse to growth of the Bacillus than normal serum, but somewhat less than that of the diseased animals.-Contribution to the semeiological and pathogenic study of rabies, by M. G. Ferré. Inoculating by trepanation, and with stronger virus than before, they found that the respiratory acceleration appeared on the fourth instead of the fifth day; the respiratory centres being invaded correspondingly sooner. The symptoms could not be attributed to thermal elevation, the maximum of this occurring later. -Statistics of preventive inoculations against yellow fever, by Dr. Domingos Freire. From 1883 to 1889, there were 10,524 persons inoculated in Brazil; and the mortality was 0'4 per cent. The deaths of non-vaccinated during the four epidemics were over 6500.-On the modifications in normal gaseous exchanges of plants by the presence of organic acids, by M. L. Mangin. He injected malic, citric, and tartaric acids into leaves of Japanese prick-wood, bay rose, and lilac, and found these leaves to behave like Cacteæ and Crassulaceæ. In the dark, the volume of carbonic acid liberated is greater than that of oxygen absorbed ; and in the light, there is emission of oxygen without correlative absorption of carbonic acid. On the existence of numerous zeoliths in the gneissic rocks of Upper Ariège, by M. A. Lacroix. PHYSICAL SOCIETY, at 5.-On the Electrification due to the Contart 1 Gases and Liquids: J. Enright-On the Effect of Repeated Heating ar Cooling on the Electrical Resistance and Temperature Coethat of Annealed Iron: H. Tomlinson, F.R.S.-Notes on Geometrical (pia Part II.: Prof. S. P. Thompson. INSTITUTION OF CIVIL ENGINEERS, at 7.30-The New Harbour and Breakwater at Boulogne-sur-Mer : S. C. Bailey. MONDAY, NOVEMBER 18. ARISTOTELIAN SOCIETY, at 8-Scepticism: S. Alexander, TUESDAY, NOVEMBER 19. INSTITUTION OF CIVIL ENGINEERS, at 8.-Water-Tube Steam-Boilers Sa Marine Engines: John I. Thornycroft. ROYAL STATISTICAL SOCIETY, at 7-45.-Opening Address by the President Dr. T. Graham Balfour, F.R.S. WEDNESDAY, NOVEMBER 20. GEOLOGICAL SOCIETY, at 8.-On the Occurrence of the Striped Hyæna a the Tertiary of the Val d'Arno: R. Lydekker.-The Catastruple of Kantzorik, Armenia: M. F. M. Corpi. Communicated by W H. Hude ston, F.R.S.-On a New Genus of Siliceous Sponges from the Lower Calcareous Grit of Yorkshire: Dr. J. G. Hinde. ROYAL METEOROLOGICAL SOCIETY, at 7-Second Report of the Thunes storm Committee-Distribution of Thunderstorms over England an Wales, 1871-87: William Marriott-On the Change of Temperatur which accompanies Thunderstorms in Southern England: G. M. Whipate -Note on the Appearance of St. Elmo's Fire at Walton-on the Naz September 3, 188): W. H. Dines,-Notes on Cirrus Formation: H Hela Clayton. A Comparison between the Jordan and the Cample:II-Stokra Sunshine Recorders; F. C. Bayard -Sunshine: A. B. MacDowall On Climatological Observations at Ballyboley, Co. Antrim: Prof. 5. A Hill. SOCIETY OF ARTS, at 8.-Opening Address by the Chairman, the Duke of Abercorn, C. B. UNIVERSITY COLLEGE CHEMICAL AND PHYSICAL SOCIETY, at 43.Pyridine and the Alkaloids: Dr. N. Collie. Whitham : 'Steam-Engine Design."-N. J. L. "Time and Tide; a Romance of the Moon Letters to the Editor: Specific Inductive Capacity.-Prof. Oliver J. Lodge, Who discovered the Teeth in Ornithorhynchus ?-Prof. Retarded Germination.-E. A. The Relation of the Soil to Tropical Diseases. - II. The Earthquake of Tokio, April 18, 1889.-Prof. A Brilliant Meteor.-Paul A. Cobbold Prof. Weismann's Essays." By Dr. St. George Mivart, F. R.S. MR. WALTER SCOTT'S PUBLICATIONS. Crown 8vo, Cloth. Price 3s. 6d. per Vol.; Half Morocco, 6s. 6d. CONTEMPORARY SCIENCE SERIES. Edited by HAVELOCK ELLIS. Most of the Volumes will be Illustrated, containing between 300 and 400 pages. The first Volume will be issued on October 25, 1889. Others to follow at short intervals. The Contemporary Science Series will bring within general reach of the English-speaking public the best that is known and thought in all depart ments of modern scientific research. The influence of the scientific spirit is How rapidly spreading in every field of human activity. Social progress, it is felt, must be guided and accompanied by accurate knowledge-knowledge which is, in many departments, not yet open to the English_reader. In the Contemporary Science Series all the questions of modern life-the Vous social and politico-economical problems of to-day, the most recent researches in the knowledge of man, the past and present experiences of the race, and the nature of its environment-will be frankly investigated and clearly presented. The first Volumes of the Series will be:THE EVOLUTION OF SEX. By Prof. PATRICK GEDDES and JARTHUR THOMSON. With 104 Illustrations, and about 322 pages. Ready October 25. [Ready November 25. By Dr. ISAAC TAYLOR. With [Ready December 25. ELECTRICITY IN MODERN LIFE. By G. W. DE TUNZRLMANN. With 88 Illustrations. THE ORIGIN OF THE ARYANS. mumerous Illustrations. The following writers, among others, are preparing Volumes for this Series: Prof E. D. Cope, Prof. G. F. Fitzgerald, Prof. J. Geikie, G. L. Gomme, E. C. K. Gonner, Prof. J. Jastrow (Wisconsin), E. Sidney Hartland, Prof. CH. Herford, J. Bland Sutton, Dr. C. Mercier, Sidney Webb, Dr. S.ms Woodhead, Dr. C. M. Woodward (St. Louis, Mo.), &c. London: WALTER SCOTT, 24 Warwick Lane. TWO NEW BOOKS ON BIRDS. Demy 8vo, 650 pages, with an Etching by FRANK SHORT, 18s. NOTES ON SPORT AND ORNITHOLOGY. By His Imperial and Royal Highness JUST PUBLISHED. Demy 8vo, Cloth, 710 pages, with (80 Illustrations, Price 18s, EXPERIMENTAL SCIENCE: Elementary, Practical, and Experimental Physics. By GEORGE M. HOPKINS. The design of this work is to afford to the student, the mechanic, and all who are interested in science, a ready means of acquiring a general knowledge of physics by the experimental method, and also to furnish to the teacher suggestions in experimentation which will be helpful in making classroom work interesting and attractive. Most of the apparatus illustrated and described may be constructed and used by anyone having ordinary me. chanical skill. Simple and easily made devices have been chosen for physical demonstration. With scarcely an exception, the experiments described were performed at the time of writing, to insure fullness of detail, and to avoid inaccuracies. E. & F. N. SPON, 125 Strand, London. Now Ready, Vol. III., Papilionide and Hesperidæ, completing the Work, SOUTH AFRICAN BUTTERFLIES: A Monograph of the Extra-Tropical Species. By ROLAND TRIMEN, F.R.S., F.L.S., F.Z.S., F. Ent. S., &c., Curator of the South African Museum, Cape Town; assisted by JAMES HENRY BOWKER, F.Z.S., F.R.G S., &c., &c., Colonel (Retired) in the Cape Service; Late Commandant of the Frontier Armed and Mounted Police; Gov ernor's Agent in Basutoland, and Chief Commissioner at the Diamond Fields of Griqualand West. The Work is published in Three Volumes, Demy 8vo, Cloth, with Twelve Plates. Price for the Complete Work, £2 12s. 6d. London: TRÜBNER & CO., Ludgate Hill. AMERICAN MINERALS. Prof. A. E. FOOTE, having been fully occupied with the numerous customers who have visited his branch at No. 14 rue Desaix, Paris, has been unable to fill the many orders received by mail, and on this account he will remain at the above place until December 15, and will be glad to meet Collectors there, as well as to fill orders for Minerals received previous to that date. The Exposition Grounds will remain open to the public, and Porte Desaix, only a minute's walk from his Store, is one of the four entrances to be kept open. Many of the rare and choice Minerals shown in his exhibit will be removed to 14 rue Desaix. Here also will be found the most beautiful Red Vanadinites ever seen, with Crystals remarkable for large Size and brilliant Colour, and at very low Prices; really showy Specimens are sold at from 28. to 55. Also beautiful Red Wulfenites from the Red Cloud Mine, Arizona: fine single Crystals are sold at from is. to 5s. Among the other remarkable Minerals are Gadolinite, Colemanite, Hanksite, Thenardite, Apophyllite, Speryllite, Beryllionite (new Glucium Species described by DANA), &c. Specimens sent on Approval. Especial attention is called to the appropriateness of these beautiful Minerals for Christmas and other Presents. Prof. FOOTE has for Sale, at 1223 Belmont Ave., Philadelphia, Pa., U.S.A., The Largest Stock of Scientific Books in the World, and will exchange for good Minerals and for Books. Send for Catalogue, specifying in what branch of Science you are interested. J. EPPS & CO., 170 Piccadilly; and 48 Threadneedle Street. MINERALOGY AND GEOLOGY. MR. HENSON, 97 REGENT STREET, LONDON (late 277 Strand), in. vites inspection of some EXCEEDINGLY CHOICE CORNISH MINERALS, consisting of CALCITES FROM THE CELEBRATED HERODS FOOT MINE, REDRUTHITE, IRIDESCENT FAHLERZ, GOETHITE, and LARGE CRYSTALS of CASSITERITE. From CUMBERLAND: FINE EXAMPLES of the VERY INTERESTING" BUTTERFLY" TWIN CRYSTALS OF CALCITE. WITHERITES, GREEN AND OTHER FLUORS. RHABDOPHANE, SCOVELLITE, FORESITE, EPISTILBITE, THORITE. FINE SERIES OF POLISHED AGATES. HAND SPECIMENS of ROCKS and ROCK-FORMING MINERALS, from 3d. each, especially selected for Private Study and Science Teaching. 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Store-boxes specially for Continental Setting, highly recommended for Beetles. All best. Lowest possible terms for cash. Prices on Application. Estimates app Trade supplied. Established since 1847. Show Rooms-7A Prince's Street, Cavendish Square, W. (7 doors frem Oxford Circus. Factories-34 Ridinghouse Street, and Ogle Street, W. INVENTIONS EXHIBITION-GOLD MEDAL AWARDED. NEW ILLUSTRATED CATALOGUE of HIGH-CLAS WATCHES and CLOCKS = REDUCED PRICES, sent po free on application to E. DENT DENT'S NEW WATCHES. TRADE MARK DENT and Co., Makers to the Quee 61 STRAND, LONDON, W.C. or 4 ROYAL EXCHANGE. FRY'S Pure Concentrated COCOA MADE WITH BOILING WATER. EPPS'S CRATEFUL-COMFORTING. COCOA MADE WITH BOILING MILK. Gold Medal awarded to J S. Fry & Sons. CHARGES FOR ADVERTISEMENTS. Three Lines in Column 2s. 6d. 9d. per Line after. NOW READY, WITH ILLUSTRATIONS AND PLANS. TRAVELS IN INDIA OF JEAN BAPTISTE TAVERNIER, BARON OF AUBONNE. Translated from the original French Edition of 1876, with a Biographical Sketch of the Author, Notes, Appendices, &c., by V. BALL, LL.D., F.R.S., F.G.S., Director of the Science and Art Museum, Dublin, Author of "Jungle Life in India," "The Economic Geology of India," &c. With Illustrations and Maps. 2 Vols., Medium 8vo, £2 25. DARWINISM: an Exposition of the Theory of Natural Selection, with some of its Applications. By ALFRED RUSSEL WALLACE, LL.D., F.L.S., &c.; Author of "The Malay Archipelago," The Geographical Distribution of Animals," "Island Life," &c. With Portrait and Map. Crown 8vo, 9s. NOW READY, THIRD EDITION. MACMILLAN AND CO., GOLD MEDAL, HEALTH EXHIBITION, LONDON. HIGHEST AWARD, ADELAIDE 1887, and MELBOURNE 1888. The British Medical Journal says:-" Benger's Food has by its excellence established a reputation of its own." "Devised on original lines, infants do remarkably well on it. There is certainly a great future before it."-Illustrated Medical News. 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The most reliable preparation YET discovered as a Preventive of Cholera or Fevers, and for the destruction of Insect or Germ Lj. Sold in 1/ and 1/6 ribbed Bottles, 1, 1, and 1 Gallon Tins. Dr. R. M. GOVER, in his report to the Director-General of Prisons, says 'Carbolic Acid is the most certain and powerful of the numerous substances used as antiseptics and disinfectants. The preparations supplied by Mes srs. CALVERT AND CO, are in my opinion, much superior to those of any other manufacturer." See that Trade Mark is on each Package over the Cork. F. C. CALVERT AND CO., MANCHESTER, Awarded 50 Gold and Silver Medals and Diplomas, In each case the HIGHEST Award when tested in competition with other Disinfectants. Printed by RICHARD CLAY AND SONS. LIMITED, at 7 and 8 Bread Street Hill. Queen Victoria Street, in the City of London, and Published by MACMILLAN AND CO., at the Office, 9 and so Bedford Street, Covent Garden. THURSDAY, Noree: 14, 109. 145 |