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TUESDAY, JUNE 19. of igneous rocks to be found within its borders. The ZOOLOGICAL SOCIETY, at 8.30.-The Nudibranchs of South India and author shows that the low-lying district east of the Blackall Ceylon : Sir Charles Eliot, K.C.M 6.- Description of a New Species of

Zebra: The Hon. Walter Rothschild.-On the Ento mostracan Fauna and D’Aguilar Ranges, which is composed essentially of

of the New Zealand Lakes: Dr. G. Stewardson Brady, F.R.S.-Note on Trias-Jura sandstones belonging to the Ipswich Coal- some Crustacea trom the Freshwater Lakes of New Zealand : Dr. Charles measures and Tertiary alluvials, has been subject to oscil- Chilton.- A Classification of the Selachian Fishes: C. Tate Regan. latory movements of elevation and depression in late

ROYAL STATISTICAL SOCIETY, at 5:- 1 be Generalised Law of Enor, or Tertiary times.

Law of Great Numbers : Prof. F. Y. Edgeworth. At present elevation is going on, as evidenced by raised beaches at Point Arkwright and else

WEDNESDAY, JUNE 20. where along the coast. The D'Aguilar Range north of

ROYAL MICROSCOPICAL Society, at 8.-On the Structure of some Woodford is made up of Trias-Jura sandstone, but to the Carboniferous Ferns; Dr. D. H. Scott, F.R.S. south of this point it consists of highly interesting plutonic ROYAL METEOROLOGICAL SOCIETY, at 4:30.–The Development and Pro and metamorphic rocks belonging in part to the Gympie beds,

gress of the Thunder Squall of February 8, 1906: R. G. K. Lemplert.

The Mean Prevalence of Thunderstorms in Various Parts of the British in part to much older formations. The country to the west

Islands during twenty-five Years, 1881-1905: F. J. Brodie.-Note on a of the D'Aguilar Range forms a peneplain with an average Typical Squall at Oxshutt, May 25, 1906: W. H. Dines, F.R.S. elevation of 500 feet. The Blackall Range is shown to consist of basalt capping rhyolites and rhyolitic tuffs, and

THURSDAY, JUNE 21. Trias-Jura sandstones. The Maroochy district was a centre

Royal Society, at 4.30.- Probable Papers : The Transition from the of great volcanic activity, rhyolites, andesites, dacites and

Liquid to the Solid State and the Foam-structure of Matrer: Prof. G.

Quincke, For. Mem.R.S.-Experimental Evidence of lonic Aligration in basalts, as well as extensive areas of tuff and breccia, the Natural Diffusion of Acids and Salts: R. G. Durrant.-Iunic Veloci. being here found.—The botany of Howell (Bora Creek), ties in Gases at Different Temperatures: P. Phillips.-The Action of N.S.W.: a tin-granite flora : J. H. Maiden. Howell is

Radium and Certain Other Salts on Gelatin : W. A. Douglas Rudge.

On the Electric Inductive Capacities of Dry Paper and of Solid Cellulose : situated nineteen miles to the south-east of Inverell. The

A. Campbell. tin-granite area under consideration extends in a two- or CHEMICAL SOCIETY, at 8.30.-The Cleve Memorial Lecture: Prof. T. E. three-mile radius from the township. It lies

on

the Thorpe. - The Constituents of the Essential Oil from the Fruit of western New England slope, at an elevation of about

Pittosporum undulatum: F. B. Power and F. Tutio.-Mobility or

Substituents in Derivatives of B-Naphthol : J. T. Hewitt and H. V. 2500 feet, and is included in E.g, New England County, of Mitchell. the botanical map to be found in the society's Proceedings

LINNEAN SOCIETY, at 8.-On the Potany of Southern Rhodesia : Miss for 1901 (p. 766). A list of the plants found so far, about

L. S. Gibbs.- On the Authentic Portraits of Linnæus (lantero slides):

W. Carruthers, E.R.S.--Plantæ novæ Daweana in Uganda lecta: Dr. 150 species referable to forty-two natural orders, is given.

Oito Stapf.-On the Genitalia of Diptera: W. Wesche.
The locality is especially rich in Acacias, A. neriifolia
perhaps being most abundant.

FRIDAY, JUNE 22.
PHYSICAL SOCIETY, at 5.-The Effect of Radium in Facilitating the Visible

Electric Discharge in vacuo : Campbell Swinton.-A Comparison

between the Peltier Effect and other Reversible Heat Effects. A. O. DIARY OF SOCIETIES.

Allen. --The Effect of the Electric Spark on the Actinity of Metals:

T. A. Vaughton. -Dielectric Strength of Thin Liquid Films: Dr. P. F.. THURSDAY, JUNE 14.

Shaw.-The Effect of Electrical Oscillations on Iron in a Magnetic Field:

Dr. W. H. Eccles. Royal Society, at 4.30:- The Experimental Analysis of the Growth of

Cancer : Dr. E. F. Bashford, J. A. Murray, and W. H. Bowen.-On the Electrical and Photographic Phenomena manifested by certain Substances that are commonly supposed to be Ætiologically Associated with Carci.

CONTENTS.

PAGE noma : Dr. W. S. Lazarus-Barlow.-The Bone Marrow; a Cytological Study forming an Introduction to the Normal and Pathological Histology The Respiratory System of Vertebrates. By A. K. 145 of the Tissue : Dr. W. E. Carnegie Dickson.--On the Relation of the A Text-book of Genetics. By W. Bateson, F.R.S. 146 Liver Cells to the Blood Vessels and Lymphatics: Dr. P. T. Herring

Text-books of Physics and Dr. S. Simpson. --Studies on Enzyme Action, Lipase, II. : Prof.

147 H. E. Armstrong, F.R.S., and Dr. E. Ormerod. -Studies of the Pro- Reduction of Geodetic Measures. By W. E. P. 148 cesses operative in Solutions, I., The Sucroclastic Action of Acids as Our Book Shelf:Influenced by Salts and Non.electrolytes : R. J. Caldwell.—The Origin

Horner : “Modern Milling Machines."—N. J. L. of Osmotic Effects : Prof. H. E. Armstrong, F.R.S.

149 MATHEMATICAL SOCIETY, at 5:30,-Exhibition of Models of Space-filling

Strong: “Lectures on the Method of Science"

149 Solids : W. Bailey.--The Algebra of Apolar_Linear Complexes: Dr. “Great Dane ” : “ The Secrets of Dog-Feeding. H. F. Baker.-Supplementary Note on the Representation of Certain

R. L.

149 Asymptotic Series as Convergent Continued Fractions: Prof. L. J. Rogers.--On Certain Special Types of Convertible Matrices : J. Brill.

“ In My Garden

149 INSTITUTION OF MINING ENGINEERS, at 11 a.m.-Address by the Pre

Letters to the Editor:sident.--The Commercial Possibilities of Electric Winding for Main Inheritance of an Abnormality, (Illustrated.)-Prof. Shafts and Auxiliary Work: W. C. Mountain. - Electrically-driven Air

Herbert McLeod, F.R.S. compressors, combined with the working of the Ingersoll-Sergeant

150 Heading-machines, and the subsequent working of the Busty Seam :

Thermometer Scales.-R. T. A. Innes

150 A. Thompson.--Practical Problems of Machine mining : Sam Mavor.- Solar and Lunar Halos.-Rowland A, Earp

igo The Strength of Brazed Joints in Steel Wires : Prof. Henry Louis.- The Royal Society of Edinburgh and the Govern. Bye-product Coke and the Huessener Bye.product Coke Ovens : J. A. Roelofsen.-Considerations on Deep Mining : George Farmer.

ment

150 Society OF PUBLIC ANALYSTS, at 8.-An Examination of the Method of Archæology in the Isle of Man (Illustrated.)

152 Milk Analysis used at the Government Laboratory in connection with Molluscan Morphology. (Illustrated.) By (B V)? 133 Samples referred under the Sale of Food and Drugs Acts: H. D. Richmond and E. H. Miller.-On the Examination of Linseed, Olive

Cycles in Chronology. By W. T. L.

154 and other Oils : R. T. Thomson and H. Dunlop.-On the Composition

Preventable Disease and Military Strength

154 and Valuation of Oils used for Gas-inaking Purposes: R. Ross and J. P. Notes. (Illustrated.)

155 Leather.-Note on Fractional Distillation by Steam Vapour : H. Hardy | Our Astronomical Column :and B. Richens. -A New Method for the Estimation of Tartaric Acid : A. C. Chapman and P. Whitteridge.

Photographing the Corona without a Total Eclipse

Observations of Nova Geminorum
FRIDAY, JUNE 15.

Personal Equation in Photometric Observations .
INSTITUTION OF MINING Engineers, at 10.30 a.m.-Rescue Apparatus Comet 1906b (Kopff)

and the Experience made therewith at the Courrières Collieries by the Observations of Variable Stars
German Rescue Party: G. A. Meyer.--A New Apparatus for Rescue.
work in Mines: W. E. Garforth.-A Rateau Exbaust-steam-driven

Visit of Representatives of French University Three-phase Haulage Plant: William 'Maurice.- Development of Placer

Education

159 Gold-mining in the Klondike District, Canada : J. B. Tyrrell. - Mining Economic Entomology. (mustrated.) By Fred. v. Education: Prof. J. W. Gregory.- The Capacity.current and its Effect

Theobald

160 on Leakage Indications on Three-phase Electrical Power-service : Sydney F. Walker.- Petroleum Occurrences in the Orange River Colony: A. Å

The South-Eastern Union of Scientific Societies 101 Sawyer.

The Surface Trajectories of Moving Air. By W. M. 162
NATIONAL AssociaTION FOR THE PROMOTION OF TECHNICAL AND New Arctic Expeditions
SECONDARY EDUCATION, at 3.-Annual General Meeting.

A Catalogue of Fossil Invertebrates. By 1. T. 163
MONDAY, JUNE 18.
University and Educational Intelligence

164 Royal GeographicAL SOCIETY, at 8.30.--A Fisth Journey in Persia : Major Societies and Academies .

164 P. Molesworth Sykes, C.M.G.

Diary of Societies

168

.

.

158 158 198 138 158

163

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