clxx 



NATURE 



[December 26, 1912 



IMPERIAL, COLLEGE OF SCIENCE 

 AND TECHNOLOGY, 



SOUTH KENSINGTON. 



ROYAL COLLEGE OF SCIENCE, 



ROYAL SCHOOL OF MINKS, 



CITY AND GUILDS (ENGINEERING) COLLEGE. 



A Special Advanced Course of about Forty Lectures with practical work 

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

 India). 



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. 



Ii is especially arranged for those desiring to qualify for posts in agri- 

 cultural and other departments. 



It will commence on January 16 next. 



Fees for Laboratory Work, .£2 per term or £5 per month for a more 

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

 to attend. 



For further details and for admission to the Course appIiciLtion should be 



IMPERIAL COLLEGE OF SCIENCE 

 AND TECHNOLOGY, 



SOUTH kensin(;ton. 



INCLUDING 



ROYAL COLLEGE OF SCIENCE, 



ROYAL SCHOOL OF MINES, 



CITY AND GUILDS (ENGINEERING) COLLEGE. 



Special Courses of Advanced Lectures will be given, commencing in 



January next, as follows : — 



Subject. Conducted Iv 



The Pathology of Plants ... Professor Blackman, M.A., Sc.D., 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 to fnblie. _ . 



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

 should be mide to the Skcketarv. 



THE SIR JOHN CASS TECHNICAL INSTITUTE, 



JEWRV STREET, ALUGATE, E.G. 



of Instruction will be given during the 



The following Special Cc 

 Lent and Summer Terms, lor^ : — 



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 t;, rqi3. 



PRODUCER GAS PRACTICE, SOLID FUELS, THE VALUATION 



OF FUELS, AND THE CONTROL OF FUEL CONSUMPTION. 



By J. S. S. Brame. 

 A Course of Ten Lectures, Monday evenings, 7 to 8 p.m., commencing 

 Monday, January 13, tgr3. 



TECHNICAL GAS ANALYSIS. 

 By Charles A. Keane, D.Sc , Ph.D., F.I.C. 

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

 mencing Wednesday, April 23, tgi3. 



FUEL ANALYSIS. 

 By J. S. S. Brame. 

 A Course of Practical Work. Friday evenings, 7 to 10 p m., commencing 

 Friday, April 2=;, I9t3. 



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

 Office of the Institule or by letter to the Princip.vl. 



NORTHERN POLYTECHNIC 

 INSTITUTE, 



HOLLOWAY, LONDON, N. 



Special full-time Day Courses commencing January 13, 1913, on 

 (i) The Chemistry of Rudder Pkouuction. 

 (2) The Manufacture and Analysis of Rutiber Goods. 

 Lecturer— Mr. FREDERICK KAVE, A.R.C.Sc. 

 The laboratory is equipped with modern washing, mixing, sheeting, and 

 vulcanising plant. 



p, . _, < Elementary on Thursday evenings, 



t-vening l,lasses ^ /^^y^„^^^ o„ Tuesday evenings. 

 Particulars and Fees on application. 



The CIVIL SERVICE COMMISSIONERS 



are prepared to consider applications from gentlemen (or appointment 

 to the position of ASSISTANT DIRECTOR of EXAMINATIONS 

 in their Department. Applicants must be University Graduates with 

 First Class Honours in Mathematics. Skill in modern languages, 

 especially in French and German Cn.-npo.sition, is highly desirable. 

 Experience in teaching or examining will be taken into account. 

 Salary ;£3oo, rising by annual increments ol £21 to .£700, with pension 

 righls under Civil Service Regulations. Age 23-30- Application 

 should be made by letter addressed to the Secretary, Civil Service 

 Commission, Burlington Gardens, London, W., not later than 

 February 14 ; qualifications should be stated, and references given ; 

 not more than three testimonials (oiiginals or copies) should accompany 

 the application. 



METEOROLOGICAL OFFICE 

 OBSERVATORIES. 



The post of SUPKRINTENnENT of the MAGNETIC and GEO- 

 PHYSICAL OBSERVATORY at ESKDALEMUIR (Dumfriesshire) 

 is vacant. Salary from .£400 to £502. Further details of the appointment 

 may be obtained from the Assistant Secretary, Royal Socieiy. 

 Burlington House. London, W. Applications for the post should be sent 

 in not later than January 31, iqij. 



IMPERIAL COLLEGE OF SCIENCE 

 AND TECHNOLOGY, 



SOUTH KENSINGTON, LONDON, S.W. 



DEMONSTRATORSHIP IN THE FUEL LABORATORIES, 



DEPARTMENT OF CHEMICAL TECHNOLOGY. 



App'ications are 

 post, which will be 



the SeCUI TARV. 



'ited 



before January 18, roi3, for the above 

 on February i ne.>cl. For particulars apply to 



UNIVERSITY OF BIRMINGHAM. 



RESEARCH DEPARTMENT IN AGRICULTURAL ZOOLOGY. 



APPOINTMENT OF HELMINTOLLOGIST. 



.\pplicaliors are invited for this re-earch appointmeni- Stipend ;£30( 



rs are invited for this 

 Applications (3 copies), 

 must be sent on or before January 25, r9i3. lo 

 further particulars may be obiaincd. The 

 expected to take up his duties at the end of M 



I thx 



GEO. H MORLK.Y, Secretary. 



FOR SALE. — GRUBB 4-inch aperture 



REFRACTING TELESCOPE, 5 foot focus, mounted upon Equa- 

 torial adjustable head on pillar stand, with castors. Condition ps new ; 

 full specification on application. — " Box No. 2250," Nai ure Office. 



TYPE-WRITING undertaken by Woman 



Graduate (Classical Tripos, Girton College. Cambridge ; Intermediate 

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BOOKS ! 



Books on Scientifle, Technical, 



Etjucational, Medical, all other 



subjects, and for all Exams. 



SECOND-HAND AT HALF PRICES! New, at 25% Discount. 



Catalogues Free. State Wants. Books sent on approval. 

 BOOKS BOUGHT: Best Prices Given. 



W. & G. FOYLE, 121-123 Charing Gross Road, London. 



IBItA.ID'K' vac 3VI,A.I«.Tirj'S 



KENOTOMETER regd 



Paik;ct No. 69-.,?,/i9i i. 



for showing the efficiency of Turbine Condensers. 



Sole P.-.leiitees and .Makers— 



BRADY & MARTIN, Ltd., Makers of Physical Apparatus, 

 NEWCASTLE-UPON-TYNE. 



PLATINUM 



Crucibles, Scrap, Utensils, Wire, Foil, Residues, &e. 



Purchased at Highest Prices or Taken in Exchange. 



Supply: Platinum Sponge, Sheet and Wire, Alloys, 



Crucibles, Dishes, Tubes, and Apparatus. 



THE LONDON REFINING & METALLURGICAL WORKS 



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ca 



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Dental Alloy, Scrap, &c., 

 valued or purchased. 



SPINK & SON, Ltd., 



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Uems for experimental work at moderate prices. 



