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THURSDAY, FEURUARY 6. tions of potassium and sodium with ammonia.--On the ROYAL SOCIETY, at 4-30. absorption of the ultra-violet rays by some organic substances LINNEAN SOCIETY, at 8.-On the Stamens and Setze of Scirpea:( ! belonging to the fatty series, by MM. J. L. Soret and Alb. A.

Clarke, F.R.S.-On the Flora of Patagonia: John Ball, F.R.S.

CHEMICAL SOCIETY, at 8 --Ballot for the Election of Fellows. Thes Rilliet. These studies, which to a large extent confirm the of Nitrogen : Prof. Ramsay, F R.S. -Studies on the Constitution alle conclusions of Messrs. Hartley and Huntington (Philosophical Derivatives of Naphthalene: Dr. Armstrong and W.P. Wynne Transactions of the Royal Society, 1879), show in a general way

Action of Chromium Oxychloride on Nitrobenzole: G. G. Hendes

J. Morrow Campbell. that the measurement of the absorption of the ultra-violet rays ROYAL INSTITUTION, at 3.-Sculpture in Relation to the Age: E4r constitutes a delicate means of estimating the purity of organic Roscoe Mullins. substances.-On the refracting powers of double salts in solu

FRIDAY, FEURUARY 7. tion, by M. E. Doumer. These researches have been carried PHYSICAL SOCIETY, at 5:-Annual General Meeting -On Galvancers on by the same method which enabled the author to determine

Prof. W. E. Ayrton, F.R.S., T. Mather, and W. E. Sumpner the refracting powers of simple salts. The results, which are GEOLOGISTS ASSOCIATION, at 7-30.-Annual General Meeting – Nste

Carbon Deposit in a Blake Telephone Transmitter: F. B Have here tabulated, show that the molecular refracting power of a the Nature of the Geological Record : The President double salt is equal to the sum of the molecular refracting powers SOCIETY OF Arts, at 5.- The Utility of Forests and the Study of Fores. of the constituent simple salts; and in general, the molecular INSTITUTION OF CIVIL ENGINEERS, at 7.30.-Reclamation of Land on the refracting power of any salt, simple or double, is proportional to River Tees : Colin P. Fowler. the number of valences of the metallic part of the salt.-Papers ROYAL INSTITUTION, at 9.-The London Stage in Elabeth's Reso were read by M. Ph. A. Guye, on the molecular constitution of

Henry B. Wheatley, bodies at the critical point; by M. Raoul Varet, on the reactions between the salts of copper and the metallic cyanides; Royal Botanic SOCIETY, at 3-45

SATURDAY, FERRUARY 8. by MM. C. Chabrié and L. Lapicque, on the physiological ROYAL INSTITUTION, at 3:- The Natural History of the Hanse, action of selenious acid ; and by M. L. de Launay, on the its Extinct and Existing Allies : Prof. Flower, C.B., F.R.S. geology of the island of Lesbos. M. de Launay considers the volcanic eruptions of this island as comparatively recent, possibly not older than the Pliocene epoch, and doubtless contemporary with the disturbances resulting in the creation of the Ægean Sea

CONTENTS.

PAGE in a region previously forming a vast marshy plain with shallow lakes.

The Hyderabad Chloroform Commission
Hygiene
In the High Alps. By T. G. B.

The Story of Chemistry.
DIARY OF SOCIETIES.

Luminous Organisms. By Prof. W. A. Herdman *
LONDON.

Our Book Shelf:-
THURSDAY, JANUARY 30.

Meldola : “ The Chemistry of Photography"
ROYAL SOCIETY, at 4-30.-Investigations into the Effects of Training Walls

Smith: “ The Popular Works of Johann Gottliels in an Estuary like the Mersey: L. F. Vernon Harcourt:-On Outlying

Fichte”
Nerve-Cells in the Mammalian Spinal Cord : C S. Sherrington.-On the Young: “Travels in France
Germination of the Seed of the Castor-oil Plant (Ricinus communis): Prof.

Letters to the Editor :-
J. R. Green.
ROYAL INSTITUTION, at 3.-Sculpture in Relation to the Age : Edwin Acquired Characters and Congenital Variation. The
Roscoe Mullins.

Duke of Argyll, F.R.S.
FRIDAY, JANUARY 31.

Multiple Resonance obtained in Hertz's Vibrators ROYAL INSTITUTION, at 9.-Smokeless Explosives : Sir Frederick Abel,

Prof. Geo. Fras. Fitzgerald; Fred. T. C.B., F.R.S. SATURDAY, FEBRUARY 1,

Trouton.

Bourdon's Pressure-Gauge. (Ilustrated.) -- Proi. A. Essex FIELD CLUB, at 7.-Annual General Meeting.-Migration of Birds :

M. Worthington E. A. Fitch, President. ROYAL INSTITUTION, at 3: ---The Natural History of the Horse, and of Foreign Substances attached to Crabs. - Alfred O. its Extinct and Existing Allies : Prof. Flower, C. B., F.R.S.

Walker; Captain David Wilson-Barker.

Thought and Breathing.-R. Barrett Pope
SUNDAY, FEBRUARY 2.

On the Effect of Oil on Disturbed Water.-A. B.
SUNDAY LECTURE SOCIETY, at 4 - The Health of the Mind; and Mental
Contagions : Dr. B. W. Richardson, F.R.S.

Luminous' Clouds. -T. w. Backhouse; Joseph MONDAY, FEBRUARY 3.

John Murphy.

The Meteorite of Mighei.-J. Rutherford Hill
SOCIETY OF Arts, at 8.--The Electromagnet: Dr. Silvanus P. Thompson,
Society OF CHEMICAL INDUSTRY, at 8. --On the Properties and Applica-

Achlya.-Prof. Marcus M, Hartog tions of Metallic Compounds of the Phenols : A. H. Allen and W. W.

The Parallelogram of Forces.-Prof. A. G. GreenStaveley.

hill, F.R.S.. ARISTOTELIAN SOCIETY, at 8.-The Conception of Sovereignty: D. G. Foot-Pounds.-A. S. E.

Ritchie.
ROYAL INSTITUTION, at 5.-General Monthly Meeting,

Chiff-Chaff singing in September.-F. M. Burton

East Africa and its Big Game. (Illustrated.). ... TUESDAY, FEBRUARY 4

The Coral Reefs of the Java Sea and its Vicinity. ZOOLOGICAL SOCIETY, at 4.-On the Morphology of a Reptilian Bird By Dr. H. B. Guppy.

(Opisthoco mus cristatus) W. K. Parker, F.R.S.-Observations on Wolves, Jackals, Dogs, and Foxes : A. D. Bartlett.-A Synopsis of the

The Electric Light at the British Museum
Genera of the Family Soricidæ : G. E. Dobson, F.R.S.

Notes:
INSTITUTION OF Civil ENGINEERS, at 8.-Bars at the Mouths of Tidal
Estuaries : W. H. Wheeler.

Our Astronomical Column:-
ROYAL INSTITUTION, at 3.-The Post-Darwinian Period: Prof. G. J. Objects for the Spectroscope.-A, Fowler.
Romanes, F.R.S.

The Total Eclipse of January 1, 1889
WEDNESDAY, FEBRUARY 5.

The Orbits of the Companions of Brooks Carne GEOLOGICAL SOCIETY, at 8.-The Variolitic Rocks of Mount Genèvre :

(1889 V., July 6).. G. A. J. Cole and J. W. Gregory.-The Propylites of the Western Isles Greenwich Observatory of Scotland and their Relation to the Andesites and Diorites of the same The Physical and Chemical Characteristics of

District : Prof. J. W. Judd, F.R.S.
ENTOMOLOGICAL SOCIETY, at 7.-On the Peculia rities of the Terminal Seg Meteorites as throwing Light upon their Past

ment in some Male Hemiptera : Dr. Sharp.-- The Lepidoptera of Burmah : History, (Illustrated.) By J, Norman Lockyet. Colonel Chas. Swinhoe. --On the Phylogenetic Significance of the Wing F.R.S.

Markings in certain Genera of Nympha lidæ : Dr. F. A. Dixey.
SOCIETY OF Arts, at 8.--High-Speed Knitting and Weaving without Weft : Scientific Serials
UNIVERSITY COLLEGE CHEMICAL AND PHYSICAL Society, at 4.30.-

Societies and Academies
The Life and Work of Faraday: S. B. Schryver.

Diary of Societies . .

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