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NATURE 



[December ig, 1912 



NOTICE. 



In consequence of the Christinas 

 Holidays NATURE of next week 

 will be published on Tuesday 

 instead of Thursday. 

 d. Advertisements intended for 

 the number must reach the pub- 

 lishers by the morning of 

 Monday, December 23. 



Office of NATURE, St. Martin's Street, W.C. 



Xccturcti, Session 1012-13. 

 Sfnet Courisc. 



ROYAL INSTITUTION OF 

 GREAT BRITAIN. 



ALBEMARLE STREET, PICCADILLY, W. 



Professor SIR JAMES DEWAR, LL.D., PhD., D.Sc , F.R.S , will 

 on SATURDAY, December 28, at Three o'clock, begin a Course of Sin 

 Lectures (adapled to a Juvenile Auditobv), experimentally illustrated, 

 on "Christmas Lecture Eiti.ogues '■—■■ Alchemy," December s8 ; 

 " Atoms," Tuesday, December 31 ; " Lir.HT," Thursday, January 2, 1913 ; 

 "Clouds," Saturday, January 4 ; "Meteorites," Tuesday, January 7; 

 "Frozen Worlds," i hursday, January 9. 



Subscription (for non-Members) to this Course, One Guinea (Juveniles 

 under sixteen, Halfa-Guinea) ; to all the Courses in the Season, Two 

 Guineas. Tickets may be obtained at the OflTice of the Institution. 



IMPERIAL COLLEGE OF SCIENCE 

 AND TECHNOLOGY, 



SOUTH KENSINGTON. 



ROYAL COLLEGE OF SCIENCE, 



ROYAL SCHOOL OF MINKS. 



CITY AND GUILDS (ENUI N EERI NG) COLLEGE. 



A Special Advanced Course of about Forty Lectures with practical work 



will be given by Professor H. M. Lefrov, M.A. (Imperial Entomologist, 



The Course is intended for those who already have a general knowledge 

 of Entomology, and who intend to take up Entomology, especially 

 Economic Entomology, at home or abroad. 



It is especially arranged for those desiring 10 qualify for posts in agii- 

 cultural and other departments. 



It will commence on January 16 next. 



Fees for Laboratory Work, £2 per term or £5 per mon'h for a more 

 extended Course. The lectures are free for those who obtain permission 



For further details and foi admission to the Course application should be 

 made to the Secretary. 



IMPERIAL COLLEGE OF SCIENCE 

 AND TECHNOLOGY, 



SOUTH KENSINGTON. 



ROYAL COLLEGE OF SCIENCE, 



ROYAL SCHOOL OF MINES. 



CITV AND GUILDS (ENGINEERING) COLLEGE. 



Special Courses of Advanced Lectures will be given, commencing in 



January next, as follows :— 



Sui'ject. Conducted h 



The Pathology of Plants ... Professor Blackman, M.A., ScD., F.L.S. 



Heredity and Mutations ... R. Ruggles Gates, M.A., Ph.D. (Lecturer 



* in Biology. St. Thomas's Hospital). 



The latter course is free la pMk. , 



For fuither information as to these and other courses to follow application 



should be made to the Secretakv. 



THE MURDOCH TRUST. 



For the benefit of INDIGENT BACHF.LORS and WIDOWERS of 

 good character, over 55 years of age, who have done "something" in the 

 way of promoting or helping some branch of Science. 



Donations or Pensions may be granted to persons who comply with these 

 conditions. 



For particulars apply to Messrs. J. & J. Turnbull, W.S., 58 Frederick 

 Street, Edinburgh. 



BIRKBECK COLLEGE, 



I:REAMS 1:UILDINGS, CHANCERY LANK, K.C. 



Principal: G. Armitage-Smilh, M.A., D.Lit. 



COURSES OF STUDY (Day and Evening) for the Degrees of the 



UNIVERSITY OF LONDON in ihe 



FACULTIES OF SCIENCE & ARTS 



(PASS AND HONOURSi 

 under RECOGNISED TEACHERS of ihe University. 



SCIENCE. — Chemistry, Physics, Mathematics (Pure and 

 Applied). Botany, Zoology, Geology and Mineralogy. 



ARTS Latin, Greek, English, French. German, Italian, 



History, Geography, Logic, Economics, Mathematics (Pure 



and Applied). 



Evening Courses for the Degrees In Economics and Law. 



«ir<;«inNAi ffrs ''^"J'' Science, £17 10s.; Ans, £10 10s. 

 SESSIONAL FE,i.i>\£n.,„„^: Science, Arts, or Fconomics, £5 5S. 



POST-GRADUATE AND RESEARCH WORK, 

 Particulars on application to the Secretary. 



THE SIR JOHN CASS TECHNICAL INSTITUTE, 



JEWRV STREET, ALDGATE, E.G. 



The following Special Courses of Instruction will be given during the 

 Lent and Summer Terms, rgts: — 



CONDUCTION IN GASES AND RADIO-ACTIVITY. 



By R- S. Willows, M.A., D.Sc. 



A Course of Ten Lectures, fully illu-trated by experiments, Friday 



evenings, 7 to 8 p.m., commencing Friday, January 17, 1013. 



PRODUCER GAS PRACTICE, SOLID FUELS, THE VALUATION 



OF FUELS. AND THE CONTROL OF FUEL CONSUMPTION. 



By J. S. S. Bkame. 

 A Course of Ten Lectures, Monday evenings, 7 to S p.m., commencing 

 Monday, January r3, 1913. 



TECHNICAL GAS ANALYSIS. 

 By Charles A. Keane, D..-c , PbD., F.I C 

 A Course of Practical Work. Wednesday evenings, 7 to 10 p.m., com- 

 mencing Wednesday, .\pril 23, 1913. 



FUEL ANALYSIS. 

 By J. S. S. Krame. 

 A Course of Practical Work, Friday evenings, 7 to ro p m., commencing 

 Friday, .Apiil 2S, ign- 



Detailed Syllabus of the Courses may be had upon application at the 

 Office of the Instin.ie or by letter to the Principal 



SOUTH-WESTERN POLYTECHNIC INSTITUTE, 



MANRESA ROAD, CHELSEA, S.W. 



Day Courses under recognised Teachers in Preparation for 

 London University Degrees in Mechanical and Electrical 

 Engineering, in Chemistry, Physics and Natural Science; 

 and Technical Cour.ses arranged to extend over Three Years 

 and Prepare for Engineering. Electrical. Chemical and 

 Metallurgical Professions. Session Fee, £15. 

 Evening Courses in all Departments :— 



Malhemalics— 'J. Lister, A.R.C.S., T. O. Strain, B.A. ; Physics— 

 *S. Skinner, M.A.. *L. Lownds, B.Sc , Ph.D., *F. W. Jordan, B.Sc. ; 

 Chemistry— -J. B. Coleman, A.K.C.S., 'J. C. Crocker, M.A., D.Sc , 

 and »F. H. Lowe, M.Sc. ; Boiany— *H. B Lacey, S. E. Chandlrr, 

 D.Sc, and 'W. Rushton, A.R.C.S , D.I.C. ; Geologv— 'A. J. Maslkn, 

 F.G.S., F.L.S. ; Human Physiology— E. L. Kennawav, M.A., M.D. ; 

 Zoology-'J. T. Cl.NNlNGHAM. M.A. : Engineering- -W. Campbell 

 Houston, B.Sc, A.M.I.C.E.. *V. C. Davies, B.Sc , and H. Atc;nTiE 

 Electrical Engineering-*A. J. Makower, M.A., *B. H. MoRPHV, and 

 U. A. Oschwald. B.A. 



"Recognised Teacher of the Universily of London. 



Prospectus from ihe Secretary, post free, ^d. ; at the OlVice, id. 



Telephone; Soo Western. SIDNFY SKINNER. M.A., Principil, 



CITY OF LONDON COLLEGE. 



ACTINO IN CONJUNCTION WITH THE tONOON CHAMBER OF COMMERCE. 



WHITE ST., and ROPEMAKER ST., M00RFIELD8, E.C, 



(H«ar Moorgate and Liverpool Street StatloDB). 



Principal: SIDNEY HUMPHRIES, B.A., LL.B.(Cantab.) 



EVENING CLASSES in SCIENCE. Well-equipped 

 LABORATORIES for Practical Work in CHEMISTRY, 

 BOTANY, GEOLOGY. 



Special Courses for Conjoint Board, Pharmaceutical and other examii- 

 alions. Classes are also held in all Commercial Subjects, in Languages 

 and Literature. Art Studio. All Classes are open to both sexes. 



DAY SCHOOLOFCOMMERCE. Prepara 

 BUSINESS 



nforaCOMMERClAL 



Prospectuses, and all other information, gratis on application. 



DAVID SAVAGE, .S,ae/<ijy. 



