;6o 



NA TURF. 



[February i 2, 1903 



the earliest period of life, for the same animal species of 

 different ages,- the ratio of the weight of the liver to the 

 surface remains constant. This constancy of ratio exists 

 also for different varieties of the same species, although, as 

 in the case of the dog, there may be considerable differences 

 of volume. — Observations on Mouas vulgaris, by M. P. A. 

 Dangeard, — Mendel's law and the constant characters of 

 hybrids, by M. Hugo de Vries. — On the comparative struc- 

 ture of the point of junction in grafted plants, by M. Lucien 

 Daniel. A study of the point of union of the graft showed 

 that even when the operation is made between plants as 

 like as possible, and by the same process, the structure is 

 essentially variable and is dependent on the mode of cica- 

 trisation. As a lesult of these differences of structure, the 

 conduction of the sap is modified more or less in each graft. 

 The great differences observed explain the contradictory 

 results obtained by different observers. — On vegetation in 

 atmospheres rich in carbon dioxide, by M. E. Demoussy. 

 lr was shown that the gases given off by earth and manure 

 are favourable to vegetation, and further experiments proved 

 that this result was due to the influence of carbon dioxide 

 alone. The conclusion is drawn that plants may profit to 

 a very high degree from the presence of a small excess of 

 caibonic acid in the atmosphere. — On the granitic rocks of 

 the massif of Beni-Toufout, between El-Milia and Collo, 

 Algeria, by M. Pierre Termiec. — The existence of the Upper 

 Jurassic and the infra-Cretaceous in the Island of Crete, by 

 M. 1-. Cayeux. — On the quantities of phosphorus contained 

 in flour, by M. Balland. 



DIARY OK SOCIETIES. 



THURSDA Y, February 12. 



Roval Society, at 4.30.— On the Decline of the Injury Current in 

 Mammalian Nerve, and its Modification by Changes of Tempera. ure. 

 Preliminary communication : Miss S. C. M Sowton and J. S. Macdonald. 

 —On the Negative Variation in the Nerves of Warm- Blooded Animals : 

 Dr. N T . H. Alcock.— On the Optical Activity of Haemoglobin and 

 Globin: Prof. A Gamgee, F.R.S., and A. Crolt Hill— On the Nucleo- 

 Proleidsof the Pancreas, 1 hymns and Suprarenal Gland, with especial 

 reference to their Optical Activity : Prof. A. Gamgee, F.R.S., and Prof. 

 W Jones— Studies in the Morphology of Spore-producing Members. 

 No. V. General Comparisons and Conclusion: Prof. F. O. Bower, 

 F.R.S.— Primitive Knot and Early Gastrulation Cavity c existing 

 with Independent Primitive Streak in Orniihorhynchus : Prof. J. T. 

 Wils.n and J. P. Hill.— The Brain of the Arcbajoceti : Prof. Elliot 

 Smith. . , . . _, , . _. 



Royal Institution, at 5.— Arctic and Antarctic Exploration: Sir 

 Clements Markham, K.C.B. 



Institution or Electrical Engineers, at 8. — It the adjourned 

 discussion on the Metric System is concluded at the Meeting on 

 February 5, the uljourn-.d discussion of Messrs. Scott and Esson's paper 

 will be taken. 



Mathematical Society, at 5.30.— Note on a Point in a Recent 

 Paper by Prof. D. Hilbert : E. T. Dixon —Some Properties of Bmodal 

 Ouartics : H. Hilton.— The Field of Force due to a Moving Electron : 

 Prof A. VV. Conway— 1 in Birational Transformations of the Type of 

 Inversion : Prof. W. Burnside. 



fRIUA V, February 13. 



Roval Institution, at 0.— Health Dangers in Food: Prof. Sheridan 



Delepine. , .. 



Royal Astronomical Society, at s.-Anniversary Meeting. 

 Physical Society, at 5 .-Address by the President elect. 

 Malacological Society, at S.-Annual General Meeung.-Address 



on the Molluscan Laiva in Classification : Prof. G. B. Howes, F.R.S. 

 Institution of Civil Engineers, at 8.— The Construction and Setting- 



out of Tunnels in the London Clay: H. A. Bartlelt. 

 MONDA Y, Fehruary 16 

 Victoria Institute, at 4.30.— The Cbeesewring, Cornwall, and its 



Teachings: Prof. Edward Hull, F.R.S. 

 Society of Arts, at S.-Paper Manufacture : Julius Hubner. 



TUESDAY, February 17. 

 Royal Institution, al 5.— The Physiology of Digestion : Prof. Allan 



Zo^logicaT'Society, at 8.30.-O11 some new Species of Spiders belonging 

 W ihe.Families Pisaurida: and Senccullda: : F. Plckard-l.ambridge.-On 

 <he Marine Fauna of Zanzibar and British East Africa, from Collections 

 made by the Author in 1901-2 : Cyril Crossland.-On the Habits of the 

 Hoolock : G. Candler. . 



Society of Arts, at 8.-Heraldry in Decoration : George W. Eve. 



Royal Statistical Society, at 5. 



Institution of Civil Engineers at l.-Pafr to be further 

 ■ diseased :-The Manufacture and Efficiency of Armour-piercing Pro- 

 jecliles: D Carnegie.-/>«/S"- "> I" read, lime permitting :-Mechanical 

 Handling of Material : G. F. Znnmer. 



iVEDtVESDAi, February 18. 



Royal Microscopical Society, at 8.-A Demonstration on the Photo- 

 micrography of Opaque Objects as Applied to the Delineation ol the 

 Minute Structure of Chalk Fossils : Arthur W. Rowe. 



Society of Arts, at S.-Three-Colour Printing : Harvey Dalzief 



r„',". Society at 5.30.— (1) The Molecular Rearrangement of A -sub- 



C stltu"d Imfno Ethers^: 3 (2) The Nature and Probable Mechanism of 

 Me'al Replacement in Tautomeric Compounds: G. D. Lander.— Ine 

 Chlorine Derivatives of Pyridine. Part VIII. The Interaction of 

 2:3:4: 5-Tetrachlurpyridine with Ethyl Sodiomalonate : W. J. Sell and 



NO. 1737, VOL. 67] 



F. W. Dootson. — The Biological Method for Resolving Inactive Acids 

 into their Optically Active Components: A. McKenzie and A. Harden. 

 Royal Meteorological Society, at 7.30. — Report on the Phenological 

 Observations for 1902 : E. Mawley. 



THURSDAY, February iq. 



Royal Society, at 4.30. — Probable Papers :— On the Formation of 

 Definite Figures by the Deposition of Dust : Dr. W. J. Russell, F.R.S. 

 — Mathematical Contributions to the Theory of Evolution. On Homo- 

 typosis in Homologous but Differentiated Organs : Prof. Karl Pearson, 

 F.R.S.— The Evaporation of Water in a Current of Air: Dr. E. P. 

 Perman. — On the Determination of Specific Heats especially at Low 

 Temperatures : H. E. Schmjtz. 



Royal Institution, at 5.— Arctic and Antarctic Exploration: Sir 

 Clements Markham. K.C.B. 



Linnean Society, at 8. — Eledric Pulsation in Desmodinm gyrans\ 

 Prof. J. C. Bose —Cerataphh Lataniae, a remarkable Aphid : Alice L. 

 Embleton. — Specialisation of Parasitism in ■ the Erysiphaceae : S. E. 

 Salmon. 



FRIDAY, Februaky 20 



Geological Society, at 3.— Annual General Meeting. 



Royal Institution, at 9 — The Measurement of Energy: Principal 

 E. H. Griffiths. 



Institution of Mechanical Engineers, at 8.— Hydraulic Experi- 

 ments on a Plunger Pump : Prof. John Goodman. — Experiments on the 

 Efficiency of Centrifugal Pumps : Thomas E. Stanton. 



CONTENTS. page 



The Scientific Work of Sir George Stokes. By 



Lord Kelvin, G.C V. O., F.R.S. 337 



Recent Method in Practical Mathematics. By 



Prof. A. G. Greenhill, F.R.S 338 



A Museum Catalogue 340 



Light for Students. By H. L. C 341 



Our Book Shelf : 



"Mr. Balfour's Apologetics Critically Examined." — 



G. S. B 341 



Periier : " La Vie des Animaux Illustre'e." — R. L. . 342 

 Benedikt : "Das biomechanische (neo-vitalistische) 

 Denken in der Medizin und in der Biologic" — ■ 



J. A. T . .342 



Andre : " Monographie des Mutillides d'Europe et 



d'Algerie."— W. F. K .... 342 



Backhouse: "Publications of West Hendon House 



Observatory, Sunderland " 343 



Tisdale and Robinson : " Buttermaking on the Farm 

 and at the Creamery."— Prof. Douglas A. Gil- 

 christ 343 



Letters to the Editor : — 



Sir Edward Fry on Natural Selection.— Francis 



Galton, F.R.S -343 



The Principle of Least Action.— A. B. Basset, 



F.R.S 343 



The Horny Membrane of Neohelia porcellana. — 



Prof. Sydney J. Hickson, K.R.S 344 



Genius and the Struggle for Existence. — G. W. 



Butler: F. W. Headley -344 



Remarkable Meteorological Phenomena in Australia. 



— H. I.Jensen 344 



A New South Wales Meteorite.— George W. Card 345 

 The Holy Shroud of Turin.— Major-General J. 



Waterhouse 345 



A Simple Sensitive Flame.— Dr. E. H. Barton . . 345 



The Funeral of Sir George Stokes 345 



Explorations in Iceland. {Illustrated.) By Dr. Th. 



Thoroddsen 346 



Royal Commission on London Locomotion. By 



Maurice Solomon 34° 



Recent Earthquakes. By. Prof. J. Milne, F.R.S. . 348 



James Glaisher, F.R.S 34^ 



Notes 34S 



Our Astronomical Column : — 



Elements and Ephemeris of Comet 1903 a 352 



The Constant of Aberration and the Solar Parallax . 352 



A New Form of Spectroscope 353 



Report of the United States Naval Observatory . . . 353 

 Forestry in the United States of America. By 



Prof. W. Schlich, F.R.S 354 



The Electrochemical Society 354 



Agricultural Notes. By T. H. M 354 



West Indian Notes 355 



Technical Education at Home and Abroad. By 



Prof. Victor C. Alderaon 35 6 



University and Educational Intelligence 357 



Societies and Academies 35^ 



Diary of Societies 3 6 ° 



