NATURE 



[January 9, 19 19 



IMPERIAL COLLEGE OF SCIENCE 

 AND TECHNOL OGY. 



TECHNICAL OPTICS DEPARTMENT. 



Courses for full-time students. 



Owing to the circumstances due to the cessation of hostilities 

 special courses of instruction are now being arranged for lull 

 and part-time students for the new term commencing on Jan. 15, 

 1919. The needs of each student will be separately consider™ 

 by the Director of the Department. The lectures and prat ticfj 

 classes previously announced for the present session will also 

 he continued. 

 General Optics— 



Professor l.J. Cheshire, C.B.E., A.R.C.S. 

 Optical Designing and Computing — 



Professor A E. Conrady, A.R.C.S. 

 Practical Optical Computing — 



Professor A. E. Conrady, A.R.C.S. 

 Workshop and Testing Room Methods— 



Professor A. E. Conrady, A.R.C.S. 

 Construction Theory and Use of Optical Measuring 

 Instruments — 



Mr. L. C. Martin, D.I.C., A.R.C.S., B.Sc. 

 A Course of Ten Weekly Lectures, commencing on Thursday, 

 Jan. 16, 1919, at 5 p.m., on 



PHOTOGRAPHIC OPTICS, 

 will be given by Professor A. E. Conrady, A.R.C.S. 

 These lectures are intended for users of photographic appar- 

 atus generally, and will deal with the optical properties of 

 photographic objectives, as far as possible non-mathematically. 

 The principles of stereoscopic photography will be dealt with. 

 Fee ss. 



For further particulars and for admission tickets apply to 

 The Registrar ok the Imperial College, 

 Imperial Institute Road, 



South Kensington, S.W. 7. 



CHEMISTS. 



The facilities afforded by the Appointments Register 

 of the Institute of Chemistry are available, free of 

 charge, to Companies and Firms requiring the Services 

 of properly qualified Analytical, Research, and Techno- 

 logical Chemists, and to Universities, Colleges, Technical 

 Schools, etc., requiring Teachers of Chemistry and 

 Technology. 



The War has brought to many manufacturers the realisation 

 that in the great majority of productive industries the assistance 

 of an adequate staff of properly trained and qualified chemists 

 is not only essential but highly profitable. 



Many qualified chemists with valuable practical experience in 

 analysis, in research, in plant control and management, will 

 shortly be available. 



During the past four years the Institute of Chemistry has 

 been the chief agency through which chemists have been 

 engaged for Government Service both with the Forces and in 

 industries connected with the War. 



With the approach of more normal conditions, the Institute 

 is now co-operating with the Appointments Department of the 

 Ministry of Labour, which is concerned with the Resettlement 

 of Officers, and is also in touch with a large number of chemists 

 who have been engaged under the Ministry of Munitions and in 

 controlled establishments. 



Companies and Firms are therefore invited to notify their 

 requirements to the Registrar of the Institute. 



The requirements should indicate (i) the industry, (ii) the 

 general nature of the duties to be entrusted to the chemists, 

 (iii) the salary and prospects attaching to the appointments, and 

 (iv) to whom replies should be addressed. 



In cases where appointments at salaries of ,£300 a year and 

 upwards (with prospects) are offered, a good selection of 

 candidates may be expected. 

 All communications to be addr, 



THE REGISTRAR, Institute of Chemistry, 

 jo Russell Square, London, W.C. i. 



BIRKBECK COLLEGE, 



DREAMS BUILDINGS, CHANCERY LANE, E.C. 4 



of the 



COURSES OF STUDY (Day : 

 UNIVERSITY OF 



d Evening) for Degre 

 LONDON in the 



FACULTIES OF SCIENCE & ARTS 



(PASS AND HONOURS) 



Under RECOGNISED TEACHERS of the University. 



SCIENCE — Chemistry, Physics, Mathematics (Pure and 



Applied). Botany, Zoolqgy, Gaology. 



ARTS — Latin, Groek, English, French. German, Italian, 



History, Geography, Logic, Economies, Mathematics (Pure 



and Applied). 



Evening Courses for the Degrees in Economies and Laws. 



Geography Diploma and Matriculation. 



POST-GRADUATE AND RESEARCH WORK. 



SESSIONAL FEES{^ ; . Sciel i ce -' £17 A° S ' ! £**■ £ -° 'St* B. 



I Evening: science, Arts, or h-conomics, £5 OS. 



Prospectus post free, Calendar 6d. (by post 8rf.)i from the Secretary. 



SOUTH-WESTERN POLYTECHNIC 

 INSTITUTE, CHELSEA, S.W. 3. 



LENT TERM COMMENCES MONDAY, JANUARY 13, /()iq. 

 Day and Evening Courses in Science and Engineering. 

 Technical Courses in Analytical and Manufacturing Chemistry. 

 Pharmacy, Dispensing, and Food and Drug Courses. 

 Metallurgy, Assaying, and Foundry work. 

 Botany, Geology, and Zoology Courses. 

 Three years' college course in Physical Education. 



SIDNEY SKINNER, M.A., Principal. 



Telephone : Western 899. 



THE SIR JOHN CASS TECHNICAL 

 INSTITUTE, 



JEWRY STREET, ALDGATE, E.C. 3. 



The following Special Courses of Instruction will be given 

 during the Lent and Summer Terms, 1919 : — 



FUEL ANALYSIS. 



By J. S. S. IJRAME. 

 A Course of 10 Lectures, with associated Laboratory work, Tuesday 

 evenings, 7 to 10 p.m., commencing TUESDAY, JANUARY 14, 1919. 



TECHNICAL GAS ANALYSIS. 



By CHARLES A. KEANE, D.Sc, Ph.D., F.I.C. 

 A Course of Laboratory work, Wednesday evenings, 7 10 10 p.m., com- 

 mencing WEDNESDAY, APRIL 30, 1919. 



A detailed Syllabus of the Courses may be had upon appli- 

 cation at the Office of the Institute or by letter to the Principal. 



UNIVERSITY OF LONDON. 



UNIVERSITY CHAIR OF CHEMISTRY tenable at King's College. 

 Initial salary ^600 a year. Applications (10 copies) in envelope marked 

 " Chair of Chemistry " should reach the Vice-Chancellor, • University of 

 London, South Kensington, S.Vk.7, not later than first post on February S, 

 1919. Further particulars on application. 



UNIVERSITY OF LONDON. 



UNIVERSITY CHAIR OF CHEMISTRY tenable at EAST 

 LONDON COLLEGE. Initial salary £600 a year. Applications (10 

 copies) in envelope marked "Chair of CheinUtt j ," should reach the Vl i> 

 Chanchii.uk, University of London, South Kensington, S.W. 7, not later 

 than first post February 8, 1919. Further particulars on application. 



MATHER & PLATT, LTD., Park Works, 



Manchester, manufacturers of Mechanical, Textile, Hydraulic and 

 Electrical riant, require a CHIEF RESEARCH ENGINEER of 

 British descent, to organise and tak^ full charge of a Works." Research 

 Department and Laboratory. The highest qualifications and wide 

 knowledge of such work are essential. Apply by letter with full details 

 stating how soon at liberty, to the above address. 



ASSISTANT CHEMIST wanted by 



Cocoa manufacturers for analytical and research work ; University 

 graduate with experience in food analysis preferred. — Apply, siatin^ 

 age, qualifications, experience, and salary desired, to "< m i; 

 25 Union Street, Bristol. 



