1Z^ 



NATURE 



[June. 3, 1922 



■Dubalen. — Mile. Yvonne Boisse de Black : The 

 •Wurmian in the high valleys of the Cere and the 

 .Goul (Cantal). — J. Thoulet : The distribution of the 

 chalk in deep-sea sediments. A study of the sedi- 

 •ments from soundings taken in the region of the 

 Azores and Canaries shows that the depth has little 

 influence on the composition of the deposits arising 

 from Globigerina.— G. Bertrand, M. Freundler, and 

 Mile. Menager : The variations in the chemical 

 composition of sea-water and the evaluation of 

 salinity. From determinations of chlorine, calcium, 

 and magnesium in sea- water from the Atlantic and 

 the Mediterranean, the authors conclude that the 

 relative chemical composition of sea- water is not 

 constant. — L. Mayet : The Villafranchian fauna of 

 the Chagny Sands (Saone-et-Loire) . — J. Stoklasa : 

 The infivience of selenium on plant evolution, in 

 the presence or absence of radioactivity. Radium 

 emanation exerts a very favourable influence on 

 plant growth, and can (in daylight) neutralise the 

 toxic properties of selenium as dioxide. — F. Lecomte 

 du Nouy : The surface equilibrium of serum and of 

 certain colloidal solutions. — P. Behague and J. Beyne : 

 Study of the times of tactile psycho-motive reactions 

 in normal man. — L. Roule : The ontogenesis of the 

 Scombriform fishes belonging to the family of the 

 Luvarides. The young of this species at first re- 

 semble, not their adult parents, but other families 

 (Coryphenides, Lampridides, Stromateides). The 

 metamorphosis is of long duration and the principal 

 changes do not take place in the very young fish, 

 so that the latter might easily be mistaken for 

 individuals of a distinct species. — F. Ladreyt : The 

 histogenesis of the basocellular epitheliomas. — H. 

 Plotz : Contribution to the study of the culture -in 

 vitro of the vaccine virus. A rabbit is inoculated 

 with vaccine pulp, and after a suitable interval is 

 bled. Its serum is cultivated in vitro in glucose- 

 broth medium. After the fifth passage, the. culture 

 fluid inoculated into the skin of the rabbit gives 

 lesions similar to those produced by vaccine pulp. 

 The animals vaccinated in this way are immune to 

 the virus of vaccine pulp. 



Official Publications Received. 



Agricultural Research Institute, Pusa. Bulletin No. 129 : The 

 Preparation of Anti-Rinderpest Serum, using Animals of Moderate 

 Susceptibility as Virus Producers. By W. A. Pool and T. M. Doyle. 

 Part 1: Buffaloes. Pp. 44. (Calcutta:. Government Printing 

 Office.) 12 annas. 



Annales de I'Observatoire Astronomique de Tokyo. Universit6 

 Imp6riale de Tokyo, College, des Sciences. Tome 5, 5 Fascicule : 

 Recherches sur le mouvement de la comete Wolf. Par M. Kamensky. 

 Pp. ii+65. (Tokyo: University ImpMale.) 



Commonwealth of Australia. Institute of Science and Industry. 

 Bulletin No. 22 : A Classification and detailed Description of the 

 Barleys of Australia. Being the Second Report of the Special Com- 

 inittee on Seed Improvement. Pp. 33. (Melbourne.) 



Diary of Societies. 



FRIDAY, June 2. 



Diesel Engine Users' Association (at Institution of Electrical 

 ■ Engineers). — H. F. P. Purday : Marine Diesel Engines. 

 SATURDAY, JUNE 3. 



Association or Teachers in Technical Institutions (Annual 

 Conference) (at Polytechnic, Regent Street), at 10.30 a.m. 



Royal Institution op Great Britain, at 3. — Sir Hugh Allen : Early 

 Keyboard Music (2). 



MONDAY, June 5. 



Association of Teachers in Technical Institutions (Annual 

 : Conference) (at. Polytechnic, Regent Street), at 10 a.m. — J. Paley 



Yorke : Presidential Address. 

 Society of Chemical Industry (London Section) (at Chemical 



Society), at 8. 



TUESDAY, JVNE 6. 

 Association of Teachers in Technical Institutions (Annual 

 - Conference) (at Polytechnic, Regent Street), at 10 a.m. — Viscount 



Burnham : Address. 

 Royal Institution of Great Britain, at 3.— Sir Percy Sykes : The 

 • Foundation of the Persian Empire. 



WEDNESDAY, JUNE 7. 



Royal Society of Medicine (Electro-therapeutics Section) and the 

 British Association for the Advancement of Radiology and 

 Physiotherapy (at 1 Wimpole Street), at 10 a.m. and 2.30 — 

 Congress of Radiology and Physiotherapy. 



Royal Society of Medicine (Surgery Section), at 5.30. — Clayton- 

 Greene, D. Harmer, Dr. E. P. Cumberbatch, and others : Discussion 

 on Diathermy in Surgical Practice. 



Institution of Electrical Engineers (Wireless Section), at 6.— 

 N. Lea : The Performance of a Radio-Telegraphic Transmitter, with 



Special Reference to the New Installation at North Foreland 



Prof. C. F. Jenkin : A Dynamic Model of Tuned Electrical Circuits 



Society of Public Analysts and other Analytical Chemists (at 

 Chemical Society), at 8.— Dr. J. C. Thresh;: The Action of Natural 

 Waters on Lead.— Dr. H. E. Annett and M. N. Bose : The Estima- 

 tion of Meconic Acid in Opium. — Dr. A. F. Joseph and F. J. Martin : 

 The Composition of Cows' Milk in the Sudan. — W. Singleton : The 

 Use of the Daylight Lamp in Volumetric and Colorimetric Analysis 



Entomological Society op London, at 8, 



THURSDAY, June 8. 



Royal Society op Medicine (Electro-therapeutics Section) and the 

 British Association for the Advancement of Radiology and 

 Physiotherapy (at 1 Wimpole Street), at 10 a.m. and 2.30.— 

 Congress of Radiology and Physiotherapy. 



Royal Institution op Great Britain, at 3. — Very Rev. Dean lege : 

 Theocracy (3). The State Invisible. 



Royal Institute op British Architects, at 5.— Dr. D. S. Maccoll : 

 What is Architectural Design ? 



London Mathematical Society (at Royal Astronomical Society), 

 at 5.— L. J. Mordell : (1) Gauss's Sums and the Law of Quadratic 

 Reciprocity in any Field. (2) The Integer Solutions of the Equation 

 ey^=ax'+bx^+cx+d. — J. E. Campbell: The Deduction of the 

 Ground-form of Einstein's Statical Gravitational Field from Gauss's 

 Expression for the Ground -form in Ordinary Two-way Space. — 

 J. L. Burchnall and T. W. Chaundy : Commutative Ordinary Linear 

 Differential Operators. — G. H. Hardy and J. E. Littlewood : 

 Fourier's Series and Power- Series. — Lt.-Col. A. Cunningham: On 

 Pellian Chains. — H. W. Turnbull : On the General Invariant Theory 

 of Quadrics. — J. Vint : Surface Waves on Limited Sheets of Water. 

 — D. K. Picken : The Euclidean Geometry of Angle. 



Royal College op Physicians of London, at 5. — Dr. Gordon 

 Holmes : The Symptoms of Cerebellar Disease and their Inter- 

 pretation (Croonian Lectures) (1). 



Optical Society (at Imperial College of Science and Technology), at 

 7.30. — Joint Conference between Ophthalmologists and Opticians 

 on Spectacle Construction. 



Chemical Society (at Institution of Mechanical Engineers), at 8. — 

 Dr. H. H. Dale : Chemical and Physiological Properties (Lecture). 



Oil and Colour Chemists' Association. 



FRIDAY, June 9. 



Royal Society of Medicine (Electro-therapeutics Section) and 

 British Association for the Advancement of Radiology and 

 Physiotherapy (at 1 Wimpole Street), at 10.30 a.m. and 2.30.— 

 Congress of Radiology and Physiotherapy. 



Physical Society of London, at 3.30. — Visit to the National Physical 

 Laboratory, Teddington. 



Royal Society op Arts (Dominions and Colonies Section), at 4.30. — 

 Major Sir Humphrey Leggett : Tanganyika Territory. 



Royal astronomical Society, at 5. 



Malacological Society op London (at Linnean Society). 



Royal Society of Medicine (Ophthalmology Section), at 8.30.— 

 Annual General Meeting. 



Royal Institution of Great Britain, at 9. — J. Barcroft : Physio- 

 logical Effects at High Altitudes in Peru. 



SATURDAY. June 10. 



Royal Society of Medicine (Electro-therapeutics Section) and the 

 British Association for the Advancement op Radiology and 

 Physiotherapy (at 1 Wimpole Street), at 10 a.m. and 2.30. — 

 Congress of Radiology and Physiotherapy. 



Royal Institution op Great Britain, at 3. — Sir Hugh Allen : 



. Early Keyboard Music (3). 



PUBLIC LECTURES. 



(A member in brackets indicates the number of a lecture in a series.) 



TUESDAY, June 6. 



King's College, at 5.30. — Dr. D. Subotid ; Influence of Geography 



on the Economic Conditions of Jugo-Slavia (2). 

 University College, at 5.30. — ^Prof. E. Husserl : Phanomenologische 

 Methode und phanomenologische Philosophie (1). (In German.) 



WEDNESDAY, June 7. 

 Imperial College op Science and Technology, at 5.15.— Prof. A. 

 F. Holleman : Recent Investigations on the Substitution in the 

 Benzene Nucleus. (In English.) 



THURSDAY, JUNE 8. 

 St. Mary's Hospital (Institute of Pathology and Research), at 5. — 



Prof. W. Bulloch : The Historical Development of the Doctrines of 



Croup and Diphtheria. 

 University College, at 5.30. — Prof. E. Husserl : Phanomenologische 



Methode und phanomenologische Philosophie (2). (In German.) 



FRIDAY, June 9. 



University College, at 5.30. — Prof. E. Husserl : Phanomenologische 



Methode und phanomenologische Philosophie (3). (In German.) 



NO. 2744, VOL. 109] 



