June 24, 1922' 



NATURE 



MANCHESTER MUNICIPAL 



COLLEGE OF TECHNOLOGY 



APPOINTMENT OF AN ASSISTANT 



LECTURER IN 



ELECTRICAL ENGINEERING 



The Governing Body invites aj^plications for an Assistant 



Lectureship in Electrical Engineering in the College of Techno- 



Iog>'. Apjilicants should possess special qualifications in the 



subject of Wireless Telegraphy. 



Salary : ;^300 per annum. 



Conditions of appointment and form of apjilication may be 



obtained from the Registrar, College of Technology, Manchester. 



The last date for the receipt of applications is Tuesday, 4th 



July 1922. 



Canvassing, either directly or indirectly, will disqualify a 



candidate for appointment. 



BIRKBECK COLLEGE. 

 (UNIVERSITY OF LONDON.) 



The Governors invite APPLICATIONS for the post of PART-TIME 

 LECTURER in MATHEMATICS in the Matriculation Department. 

 .Salary, £180 per annum. 



Application must be made on the official form, which, together with 

 further particulars of the post, will be forwarded on receipt of an addressed 

 envelope. 



The latest date for receiving applications is Monday, July 3. 



Birkbeck College, E.C.4. 



G. F. TROUP HORNE, Secretary. 



LEICESTER CITY TECHNICAL 

 SCHOOL. 



Principal: J. H. HAWTHORN, M.A. 



fiber 



next, a full-time INSTRUCTOR in 

 arrange- 



WANTED, on Sept 

 PHYSICS. 



Salary according to " Burnham " Scale, subject to such carry 

 ments as apply to existing staff. 



Applications, accompanied by not more than three testimonials, should be 

 addressed without delay to the Registrak at the School. 



F. P, ARMIT.\GE, Director of Education. 



UNIVERSITY COLLEGE, 

 NOTTINGHAM. 



DEPARTMENT OF GEOLOaY AND GEOGRAPHY. 



The Council invite applications for the position of LECTURER in 

 GEOGRAPHY. 



-Applicants must have a University Degree with Honours, or some 

 equivalent qualifications. 



Salary, ^300 per annum. 



Further particulars and forms of application, which must be returned not 

 later than July i, may be obtained from the Reoistkak. 



THE UNIVERSITY OF LEEDS. 



DEPARTMENT OF AGRICULTURE. 



Applications are invited for the appointment of ASSISTANT 

 LECTURER in AGRICULTURAL CHEMISTRY. Salary, l^ca per 

 annum. Further particulars may be obtained from The Registrar, The 

 University, Leeds, who will receive applications for the appointment up to 

 July 8, 1922. ^^^^ 



THE UNIVERSITY OF LEEDS. 



DEPARTMENT OF AGRICULTURE. 



Applications are invited for the appointment of IJKMONSTRATOR in 

 AGRICULTURAL BOTANY. Salary, ;C250 per annum. Further par- 

 ticulars may be obtained from The Registrar, The University, Leeds, 

 who will receive applications for the appointment up to July 8, 1922. 



LONDON SCHOOL OF ECONOMICS AND POLITICAL 

 SCIENCE. 



(UNIVERSITY OF LONDON.) 



WANTED in September, an ASSISTANT in the DEPARTMENT 

 of GKOGR.-\PHY. Candidates must be under 30 years of age. Honours 

 Degree in Geography or Geology essential. Commencing salary, £,2^0. 

 .\pply before Jtily la, to Secretary, School of Economics, Houghton 

 Street, Aldwych, W.C .2, giving two refe.ences. 



WANTED.— Oil-Testing Apparatus, Bomb 



Calorimeter, and general chemical apparatus. Particulars and 

 prices to Che.mist, 13 St. Clement's Road, Chorlton-cum-Hardy, 

 Manchester. 



THYMO-PLAS 



A new and unique method for the collection and 

 preservation of Insects. Small cells of Plasticine, 

 impregnated with a preservative, and celluloid 

 covers, form an ideal means of viewing specimens 

 without deterioration or damage. 



Complete Outfits, 3s. 4d. and Gs. 6d. 



Full particulars hy Dr. Alfred Moore, M.D., F.E.S., 2d. Stamp. 



HARBUTTS PLASTICINE, Ltd. 



49 BATHAMPTON, BATH. 



SPECIAL TO STUDENTS 



and those requiring a first-class microscope. We are able to offer a few 

 only of the well-known Koristka foldins; travelling microscopes, which are 

 brand new, and listed at £,3?>, at a specially reduced price of £20. This 

 offer is made to ensure immediate disposal of our stock of this model, and to 

 make room for a slightly impro\ed pattern which is now ready for delivery 

 from the factory. 



There are only a few for disposal, and the offer can under no circumstances 

 be repeated. We will arrange to supply on deferred payment terms if 

 desired, £4 cash down and twelve equal payments of £1:9:4. Strict 

 'approval if desired. 



SPECIFICATION. Koristka 1922 model, compact folding pattern, fine and 

 coarse adjustment, square stage, three eyepieces, and three objectives, |", 

 J", and T^j" oil immersion. Abbe condenser, with iris, complete in case and 

 special platform for use of microscope on tripod stand. I'hese are brand 



new 1922 instruments, not second-hand. To s 

 miediate application must be ma' 



: one of the limited r 



THE CITY SALE & EXCHANGE, 

 81 ALDERSGATE STREET, LONDON, EC. 



BEE RESEARCH INSTITUTE. 

 ROTHAMSTED EXPERIMENTAL STATION. 



The Committee of the above Institute will shortly appoint a BIOLOGIST 

 as ASSISTANT att.iched to the ENTOMOLOGICAL DEPARTMENT 

 to carry out research work on Apiculture. Previous experience with bees 

 is not essential, but the successful candidate will be required to undergo the 

 necessary training during the first year of his appointment. Apply before 

 July 6, stating University qualifications, to the Secretary, Ruthamsted 

 Experimental Station, Harpenden, Herts. 



ACCURATE CHEMICAL THERMOMETERS.— 



110° C, 150° C, 250° F., 300° F., 2S. 61/., each ; 200° C, 2^. g<f, each ; 

 360° C, 400° F., 3s. each ; 500° C, special glass, los. each. Also 

 singles and sets iri all graduations to 1/10°. — Cheei.d, Chesham. 



WANTED.— Leitz Petrological Microscope, 



analyser in lower part tube, triple nose and eye pieces, convenient con- 

 denser. Reply, Box ici, c/o Dawsons, 17 Craven St., London, W.C. 2. 



THE GENERAL DISCUSSIONS OF 

 THE FARADAY SOCIETY. 



The SECRET.\RV will send on application the latest list of available 

 REPRINTS.— 10 Essex Street, London, W.C.2. 



ADVERTISER, forming Library, wishes to 



purchase second-hand books on Botany, Biology, Mycology, Chemistry, 

 Physics, .\§ricultiue. Technology, and Gener.d Science. 



.State edition and lowest prices to Mycologist, Mundakayam, 

 Travancore, Indi.i. 



A WELL-KNOWN FIRM OF SCIEN- 

 TIFIC INSTRUMENT MAKERS require the services of a man 

 experienced in the final adjusting and testing. Preference will be 

 given to one who has some knowledge of computing. State experi- 

 ence, age, salary required, by letter only, to " Expert," c/o Gibbs 

 Smmii &Co., 10 High Holborn, W.C.i. 



ORGANIC CHEMIST, well qualified, and 



with 8 years' experience of research, manufacture, and analysis, requirts 

 appointment ; temporary considered. Box 361, c/o Natuke Office. 



