764 



NATURE 



[June 10, 1922 



their original properties have lost the essential 

 characteristic of making pyocyanine. One variety 

 gives no trace of the blue colouring matter in peptone 

 water or peptone gelose, but the pyocyanine reappears 

 if a small quantity of glycerol be added to the peptone 

 gelose. In cultures with increasing quantities of 

 glycerol, the power of producing the blue pigment 

 is lost. — Albert Berthelot and Mme. St. Danysz- 

 Michel : The presence of acetone-producing micro- 

 organisms in the intestinal flora of diabetics. Cultures 

 from faecal matter of 32 subjects, not diabetic, but 

 suffering from various diseases, showed that no organ- 

 ism was present capable of producing acetone from 

 starch. From similar cultures with faeces from 

 diabetic patients, acetone-producing organisms were 

 found in 17 cases out of 22. The view that diabetes 

 is a disease of microbial origin is not in agreement 

 with the present state of knowledge of this disease, 

 but it is not altogether impossible that certain cases 

 of diabetes may be caused, directly or indirectly, by 

 the presence of certain micro-organisms in the 

 intestine. — M. Breton and V. Grysez : The reactions 

 of defence and immunity provoked by the intra- 

 dermic injection of micro-organisms, either Uving or 

 killed by heat. The skin of the rabbit possesses 

 exceptional properties of defence against organisms 

 inoculated there : immunity has been produced by 

 a single injection. 



Official Publications Received. 



Annals of the Astronomical Observatory of Harvard College. Vol 

 86, Part 1 : Observations and Investigations made at the Blue Hil 

 Meteorological Observatory in the Year 1921 under the direction of 

 Prof. A. McAdie. Pp. 61. (Cambridge, Mass.) 



Egyptian Government. Almanac for the Year 1922. Pp. viii +242. 

 (Cairo : Government Publications Office.) P.T. 10. 



Dominion of New Zealand : Board of Science and Art. Bulletin 

 No. 2 : History of the Portobello Marine Fish- Hatchery and Biological 

 Station. By the Hon. Geo. M. Thomson and the late T. Anderton. 

 Pp. 131. (Wellington, N.Z.) 



Annual Report of the Council of the Yorkshire Philosophical Society 

 for the Year 1921, presented to the Annual Meeting, February 13th, 

 1922. Pp. 51. (York.) 



The Royal Society for the Protection of Birds. Thirty-first Annual 

 Report, January 1st to December 31st, 1921, with Proceedings of 

 Annual Meeting, 1922. Pp. 76. (London : 23 Queen Anne's Gate, 



Diary of Societies. 



FRIDAY, June 9. 



ROYAI, 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 of Arts (Dominions and Colonies Section), at 4 30 — 

 Major Sir Humphrey Leggett : Tanganyika Territory (formerly 

 German East Africa). 



Royal Astronomical Society, at 5. 



Malacological Society of London (at Linnean Society) 



Geologists' Association (at University College), at 7.30.— Dr. A E 

 Trueman : The Liassic Rocks of Glamorgan. — C. C. Fagg : The 

 Recession of the Chalk Escarpment and the Development of Valleys 

 in the Chalk between the Mole and the Darenth. 



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

 Annual General Meeting. 



Royal Institution op 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 of Radiology and 



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



Congress of Radiology and Physiotherapy. 

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



Early Keyboard Music (3). 



MONDAY, June 12. 

 Victoria Institute • (at Central Buildings, Westminster), at 4.30.— 



Miss A. M. Hodgkin : The Witness of Archaeology to the Bible. 

 Institute of Actuaries, at 5. — Anpual General Meeting. 

 Royal Institution of Great Britain, at 5. — General Meeting. 

 Society op Engineers (at Geological Society of London), at 5.30. — 



Dr. H. Chatley ; A. S. E. Ackermann : The Physical Properties of 



Clay. 



Royal Institute of British Architects, at 8. — Business Meeting. 

 Aristotelian Society (at University of London Club, 21 Gower 



Street), at 8. — T. Greenwood : Geometry and Reality. 

 Royal Geographical Society (at ^olian Hall, 135 New Bond 



Street), at 8.30. 

 Royal Society of Medicine (Tropical Diseases and Parasitology 

 ^ Section), at 8.30. — Sir Leonard Rogers : Leprosy : Its Etiology and 



Epidemiology. — D. Plnnock : Quinine Necrosis of Muscles. — Dr. J. 



Bamforth : Cortical Necrosis of the Kidney in a Fatal Case of 



Malaria. 



TUESDAY, June 13. 



Royal College of Physicians of London, at 5. — Dr. G. Holmes : 

 The Symptoms of Cerebellar Disease and their Interpretation 

 (Croonian Lectures) (2). 



Zoological Society of London, at 5.30. — The Secretary : The 

 Council's Scheme to establish an Aquarium in the Society's Gardens. 

 — Miss Joan B. Proctor : A Study of the Tortoise Testudo loveridgii, 

 Blgr., and the Morphogeny of the Chelonian Carapace. — J. T. 

 Carter : A Microscopical Examination of the Teeth of the Primates. 

 — H. G. Jackson : A Revision of the Isopod Genus Ligia (Fabricus). 

 — W. R. B. Oliver : A Review of the Cetacea of the New Zealand 

 Seas. — Prof. Wood Jones : The Dental Characters of certain Aus- 

 tralian Rats. 



Royal Photographic Society of Great Britain, at 7. — F. T. 

 Usher : Matt Surface Plates. 



QUEKETT Microscopical Club, at 7.30. — E. K. Maxwell : Some 

 Tubular Rotifers. — F. H. Davidson : Demonstration of Microscope 

 and Super-Microscope. 



Royal Anthropological Institute, at 8.15. — Prof. G. Elliot Smith 

 and Prof. J. I. Hunter : A Reconstruction of the Piltdown Skull. 



Rontgen Society (at Institution of Electrical Engineers), at 8.15.— 

 Dr. F. L. Hopwood and Dr. E. A. Owen : German Apparatus for 

 the Production and Measurement of X-rays for Deep Therapy. — 

 Prof. S. Russ and L. H. Clark : A Balance Method of Measuring 

 X-rays . for Therapeutic Purposes. — Dr. F. L. Hopwood : The 

 Ondoscope.^Dr. E. A. Owen : The Sphere Gap Voltmeter. 



Sociological Society (at Royal Society), at 8.15. — G. K. Chesterton : 

 The Return of the Guilds. 



WEDNESDAY, JUNE 14. 



Geological Society of London, at 5.30. — Prof. P. G. H. Boswell : 

 The Petrography of the Cretaceous and Tertiary Outliers of the 

 West of England.— Prof. W. N. Benson and Dr. S. Smith : Some 

 Rugose Corals from the Burindi Series (Lower Carboniferous) of 

 New South Wales. 



Royal Microscopical Society, at 8. — J. Straohan : The Micro- 

 scope in Paper Making. — A. Chaston Chapman : The Use of the 

 Microscope in the Brewing Industry. 



THURSDAY, June 15. 



royal Society, at 4.30. — Probable Papers.— Dr. H. M. Evans : 

 The Defensive Spines of Fishes, Living and Fossil, and the Glandular 

 Construction in connection therewith, and Observations on the 

 Nature of Fish Venoms. — D. W. Cutler, L. M. Crump, and H. Sandon : 

 A Quantitative Investigation of the Bacterial and Protozoan 

 Population of the Soil : with an Account of the Protozoan Fauna. — ': 

 D. W. Devanesen : The Development of the Calcareous Parts of 

 the Lantern of Aristotle in Echinus miliaris. — Dr. A. Lipschutz, 

 C. Wagner, R. Tamm, and F. Bormann : Further Experimental 

 Investigations on the Hypertrophy of the Sexual Glands. 



LiNNEAN Society of London, at 5. 



Royal College of Physicians of London, at 5. — Dr. G. Holmes : 

 The Symptoms of Cerebellar Disease and their Interpretation 

 (Croonian Lectures) (3). 



Royal Aeronautical Society (at Royal Society of Arts), at 5.30. — • 

 Lieut.-Col. A. Ogllvie : Some Aspects of Aeronautical Research 

 (Wilbur Wright Lecture). 



National Union op Scientific Workers (in Botanical Theatre, 

 University College), at 5.30.— F. W. Sanderson : The Duty and 

 Service of Science in the New Era. 



Chemical Society, at 8.— C. K. Ingold and E. A. Perren : Ring-chain 

 Tautomerism. Part III. The Occurrence of Tautomerism of the 

 Three-carbon (Glutaconic) Type between a Homocyclic Compound 

 and its Unsaturated Open-chain Isomeride. 



PUBLIC LECTURES. 



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



FRIDAY, June 9. 



University College, at 5.30.— Prof. E. Husserl : Phanomeno- 



logische Methode und Phanomenologische Philosophic (3). (In 



German.) 



MONDAY, June 12. 



Royal Society of Medicine, at 5. — Dr. M. Jansen : Injurious 

 Agents and Growth. (In English.) 



University College, at 5.30. — Prof. E. Husserl : Phanomeno- 

 logische Methode und Phanomenologische Philosophic (4). (In 

 German.) 



TUESDAY, June 13. 



Fellowship of Medicine (at 1 Wimpole Street), at 5. — Sir William 

 Hale White : The Clinical Symptoms of Coli Infection of the Urine. 



King's College, at 5.30. — C. E. M. Joad : Vitalism Restated (2). 

 Dualism and the Life Force. 



THURSDAY, June 15. 



Royal Institute op British Architects, at 5. — Prof. C. H. Reilly : 



Some London Streets and their Recent Buildings. 

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



Sir Berkeley G. A. Moynihan : Diverticula of the Alimentary Tract. 



NO. 2745, VOL. 109] 



