N. I TURE 



[November 2, 1905 



On the composition of the hydrorhloroferric colloid as a 

 function of the amount of HO in the liquid : G. 

 Malfitano. — On some aromatic ethylene oxides : MM. 

 Fourneau and Tiffeneau. A study of the conditions 

 under which the ethylene oxides tend to pass over into 

 aldehydes. — New researches on the development of green 

 plants : Jules Lefevre. The author's experiments lead to 

 the same conclusion as those of Moll and Cailletet, if 

 carbonic acid is absorbed by (he roots it is not utilised 

 by the plant. — An analysis of some anthropometric 

 measurements of men and women of the gipsies : Eugene 

 Pittard. — Serotherapy in cases of bleeding : Emile Weil. 

 In the cases known as "bleeders," in which a slight 

 wound continues i" bleed, it is shewn that this effect is 

 due to a property of the blood itself. This disease can be 

 remedied by the injection of normal human or bovine 

 serum. Details are given of the cure of one case, who, 

 on the twenty-fifth day after the last injection, for the 

 first time in his life, had a tooth removed with only the 

 normal loss of blood. — The distribution of fine sediment 

 on the bed of the ocean : J. Thoulet. 



New South Wales. 



L nnean Society, August 30. — Vlr. T. Steel, president, in 

 the chair. — Crustacea dredged off Port Jackson in deep 

 water : F. E. Grant. Six species of Malacostraca were 

 taken, of which four species, referable to the genera 

 Hyastenus, Cymonomops, Latreillopsis, and Paguristes, are 

 described as new. Of the remaining two species, Ebalia 

 tuberculosa and Ibacus alticrenatus, only the former has 

 previously been recorded as belonging to our fauna. — Notes 

 on Prosobranchiata, No. 4, the ontogenetic stages repre- 

 sented by the gastropod protoconch : H. Leighton 

 Kesteven. The present contribution is a continuation of 

 the writer's attempts to unravel the puzzles presented by 

 the gastropod protoconch. He finds that he is able to 

 define four stages of growth represented, and supposes an 

 " ideal " protoconch to be composed of (1) the " plug " 

 of the primitive shell gland ; (2) a portion formed by the 

 veliger ; (3) a portion formed during the nepionic stage ; 

 and finally (4) a portion formed during early neanic stages. 

 — On a new species of Eucalyptus from northern New 

 South Wales : J. H. Maiden. This is a large white 

 gum, much resembling the blue gum (E. saligna) when 

 growing, and the timber of which is specially esteemed. 

 Its timber, however, as compared with that of E. saligna, 

 is white from the sap to the heart. Its closest affinity 

 appears to be with E. Deanei, Maiden. — A gelatin-harden- 

 ing bacterium : R. Greig Smith. The bacterium was 

 isolated from the tissues of Schinus molle, which was 

 exuding a turquoise coloured gum-resin. When it was 

 grown upon ordinary glucose gelatin, the medium became 

 deep brown in colour, and was not liquefied when heated 

 to the boiling point of water. Tannin, formaldehyde, or 

 oxidising enzymes could not be detected. — On the sup- 

 posed numerical preponderance of the males in Odonata : 

 R. J. Tillyard. Reasons are given for concluding that 

 the ratio of the numbers of the sexes in the dragon-flies 

 or Odonata is a ratio of equality. The idea of the pre- 

 ponderance of the males, suggested largely by the examin- 

 ation of collections, and voiced from time to time by 

 naturalists, has not been confirmed by experience in roar- 

 ing a large number of nymphs of Lestes leda. 



DIARY OF SOCIETIES. 



THURSDAY, November 2. 



Chemical Societv, at 8.30.— Solution and Pseudo-solution, part iv., 

 Some o( the Arsenious Properties of Ar,enious Sulphide and Ferric 

 Hydrate: E. Linder and H. Picton.— The Molecular Conductivity of 

 Water: P. Blackman.— The Stereoisomerism of Substituted Ammonium 

 Compounds: H. (J. Jones. — The Influence of very Strong Electro- 

 magnetic Fields on the Spark Spectra of Ruthenium, Rhodium, and 

 Palladium; J. E Purvis. — Note on the Fluorides of Selenium and 

 Tellurium: E. B. R. Prideui*.— The Constitution of Glutaconic Acid: 

 J F. Tnorpe.— Some Alkyl Derivatives of Glutaconic Acid and of 2 : 6- 

 Diexypyridine : H. Baron and J. F. Thorpe.— Note on the Formation of 

 0-Methylglutaconic Acid and of a/3-Dimethylglulacomc Acid: F. V. 

 Darhishire and J. F. Thorpe. 



Linnean Societv, at 8. — Plant Ecology, interpreted by Direct Response 

 to the Conditions of Life : Rev. G. Henslow. 



The Ruhmkorff Coil : Prof. Wertheim- 

 ineers' Society, at S. — Sea Defences: 



NO. 1879, VOL. J7>} 



MONO A Y, November 6. 

 :al Society, at 8 so.— Introductory Remarks 

 rge D. T. Goldie, K.C.M.G., F.R.S.— Travels 1 



The 



Walter Weston. 



SOCIB 



aporatk 



of Central Japan : 

 ' Chemical Ihii 



:ontaining Solids : Dr. J. Lewkowitsch. 

 WEDNESDAY, November 8. 

 Geological Society, at 8. 



THURSDAY, November 0. 

 Matiifmatical Society, at 5.30.— Annual General Meeting. — The 

 Continuum and the Second Number class: G. H. Hardy. -On the 

 Arithmetical Nature of the Coefficients in a Group of Linear Substitu- 

 tions of Finite Order (second paper) : Prof. W. Burnside.— On the 

 Asymptotic Value of a Type of Finite Series : J. W Nicholson.— On an 

 Extension of Dirichlet's Integral : Prof. T. J. l'A. Bromwich.— (1) On 

 Improper Multiple Integrals; (2) On the Arithmetic Continuum: Dr. 

 E. W. Hobson. 

 Institution of Electrical Engineers, at 8.— Inaugural Address: 

 John Gavey, C. B. 



FRIDAY, November jo. 

 Royal Astronomical Society, at 5. 

 Physical Society, at 8. 



Malacological Society, at 8.— (1) Descriptions of Ne 

 Drymius Amphicyclotus, and Neocyclotus from Central 

 America ; (2) Description of a New Species of Achatina froir 

 land: S. I Da Costa. —On a Collection of Land and Freshu 

 from Sumatra wiih Descriptions of New Species. p?rt i.: Ri 



ngton Bullen. On a New'Species of Oli< 

 Anatomy of Ensis macha and Solen foi 



Species of 

 and South 



Mashona- 

 ater Shells 

 •v. R. Ash- 



Uh 



PAGE 



of 



CONTENTS. 



Two Text. Books on Mechanics. By M 1 



Induced Radio-Activity 2 



Garden Cities 2 



Our Book Shelf :— 



Dunstan : " Elementary Experimental Chemistry '" 

 Step: " Wayside and Woodland Blossoms" . . 

 Brightwen : " Quiet Hours with Nature " . . . 

 Classen: " Simmlung Schubert, XLII." .... 

 Karsten and Schenck : " Vegetationsbilder "... 

 Letters to the Editor: — 



Remarkable Ccelenterata from the West Coas 



Ireland.— Prof. Sydney J. Hickson, F.R.S. . 

 Action of Radium on Gelatin Medii.— John Butler 



Burke 5 



Border occasionally seen between Light and Dark 

 Regions on Photographic Prints.— Sir Oliver 



Lodge, F.R.S. . 5 



Terminology in Electro-physiology. — {With Diagram.) 



— Dr. David Fraser Harris 5 



The Engineer's Unit of Force.— D. J. Carnegie; 



The keviewer 6 



Prof. Lankester's " Extinct Animals." (Illustrated.). 6 

 Astronomy and Meteorology in Australia. By 



W. N. S 8 



Ferdinand Baron von Richthofen. By A. G 8 



The Treasury and Men of Science 9 



The British Science Guild 10 



Notes 13 



Our Astronomical Column : — 



Astronomical Occurrences in November 17 



Wave-lengths of Silicium Lines 17 



Report of the Yerkes Observatory ......... 18 



Observations of Jupiter's Sixth Satellite 18 



The Speclrum of Nova Persei No. 2 18 



Reduction Tables for Equatorial Observations .... 18 



Photographic Star Catalogue 18 



Geography at the British Association 18 



The Chelsea Power Station. (Illustrated.) By 



Richard F. Chaffer 20 



Replicas of Diffraction Gratings 21 



University and Educational Intelligence 22 



Societies and Academies 23 



Diary of Societies 24 



