CXXX 

UNIVERSITY OF LONDON. 
The following Lectures have been arranged : 
A Lecture on “ Prop-ems of FUNDAMENTAL AsTRONOMY ” by Professor 
W. ve SITTER (Professor of Astronomy in the University of Leiden) in 
the department of Physics, IMpeRtAL CoLLEGE or Sci¢NCE AND 'TECHNO- 
Locy, Imperial Institute Road, South Kensington, S.W., on Monpay, 
May 7, at 5.15 ?.M. The Chair will be taken by the Astronomer-Royal 
(Sir Frank Dyson, LL.D., F.R.S.). 
A Lecture on ‘THE Evectric CHARGE or CoL.orps” by Dr. H. R. 
KRUYT (Professor of Physical Chemistry in the University of Utrecht) in 
the department of Chemistry, University Cotiece, London (Gower Street, 
W.C.), on TuEspay, May 8,at5 p.m. The Chair will be taken by Professor 
F. G. Donnan, C.B.E., F.R.S. (Professor of Chemistry in the University). 
A Course of Three Lectures on ‘* PHASKs of INDIAN GEoLoGcy” by The 
Hon. Sir THOMAS H. HOLLAND, K.C.S.I., K.C.LE., F.R.S. (Rector 
of the Imperial College of Science and Technology), at University 
CoLLEGE, London (Gower Street, W.C.), on WEDNESDAYS, May 9g, 23, and 
30, ats.15 ».M. At the First Lecture the Chair will be taken by The Right 
Hon. Lord Cuet.msrorp, G.C.M.G., G.C.S.1., G.C.1.E., G.B.E. 
ADMISSION TO THE LECTURES IS FREE, WITHOUT 
TICKET. 
EDWIN DELLER, Academic Registrar. 
IMPERIAL COLLEGE OF SCIENCE 
AND TECHNOLOGY, 
SOUTH KENSINGTON, S.W.7. 
DEPARTMENT OF OPTICAL ENGINEERING AND 
APPLIED OPTICS. 
A Special Course of Six Weekly Lectures on ‘‘ THe PoLarisATION OF 
Licht AND SOME OF ITs TECHNICAL ApPpLICcATIONS,” by Professor F. J. 
CHESHIRE, C.B.E., F.Inst.P., P.R.M.S., commencing on Monday, 
April 30, at 6.30 P.M. 
The Petrological Microscope will receive special attention in these 
Lectures. 
For admission tickets application should be?made to the REGISTRAR at 
the above address, or the fee may be paid at the first lecture. Fee, ros. 
MINISTRY OF AGRICULTURE AND 
FISHERIES. 
AGRICULTURAL AND VETERINARY RESEARCH 
SCHOLARSHIPS. — 
The Ministry of Agriculture and Fisheries invites applications for RE- 
SEARCH SCHOLARSHIPS in AGRICULTURE and VETERINARY 
SCIENCE. The number to be awarded will depend upon the qualifica- 
tions of candidates and will not in any case exceed seven. The Scholarships 
are tenable for three years from October 1, 1923, and are of the value of 
4200 per annum. 
Applications must be received not later than July 15, 1923, and must he 
made on the prescribed form, which, together with a copy of the conditions 
attaching to these Scholarships, may be obtained from the SECRETARY, 
Ministry of Agriculture and Fisheries, Whitehall Place, London, S.W.1. 
BEDFORD COLLEGE FOR WOMEN 
(UNIVERSITY OF LONDON), 
REGENT’S PARK, N.W.1. 
Principal—Miss M. J. TUKE, M.A. 
Degree Courses in Arts and Science. Course of Training in Social Work. 
For Resident and Day Students. 
Easter Term begins THurspay, April 26, 1923. 
UNIVERSITY OF LEEDS. 
NEXT SESSION BEGINS OCTOBER 1, 1923. 
CANDIDATES for admission in the Session 1923-24 should apply at 
once to the Recistrar of the University, from whom copies of the 
General Prospectus or special Departmental Prospectuses may be obtained. 
nT 
UNIVERSITY OF LONDON. 
The Senate invite applications for the following posts : 
UNIVERSITY CHAIR of PHYSIOLOGY tenable at King’s College. 
Salary £800 a year. 
UNIVERSITY READERSHIP in Physics tenable at Guy’s Hospital 
Medical School. Salary £400 a year. 
Applications (12 copies) must be received not later than first post on 
May 19 and 16, 1923, respectively, by the AcaDEMic ReGisTrarR, University 
of London, South Kensington, S.W.7, from whom further particulars may 
be obtained. 
UNIVERSITY OF LONDON. 
The Senate invite applications for the ASTOR CHAIR of PURE 
MATHEMATICS tenable at University College. Salary £1000 a year, 
Applications (12 copies) must be received not later than first post on May 24, 
1923, by the AcApEMiIc Reaistrar, University of London, South Ken- 
sington, $.W.7, from whom further particulars may be obtained. 
TRANSLATIONS, BIBLIOGRAPHICAL 
WORK, and COMPUTATIONS. Apply M.Sc., 68 Elms Road, 
Clapham, S.W.4. 






NATURE 


[APRIL 28, 1923 
CHELSEA POLYTECHNIC, 
CHELSEA, S.W.3. 
Day and Evening Courses in Science under Recognised Teachers 
of London University. 
+ INDUSTRIAL CHEMISTRY DEPARTMENT. 
Technical Courses in Analyticah and Manvfacturing Chemistry, 
Pharmacy, Food and Drugs, A.I.C. Courses, Metallurgy, Assaying, 
Foundry Work, Research. 
IL INDUSTRIAL PHYSICS DEPARTMENT. 
Practical work in General Physics, Applications to Industries, 
Metrology, Calorimetry, Illumination, Acoustics, Electrical 
Measurement, Research. 
lll. BIOLOGICAL AND GEOLOGICAL DEPARTMENT. 
Courses for B.Sc., etc., in Botany, Geology, Mineralogy, Zoology, 
Special Courses in Bio-chemistry, Bio-physics, Bacteriology, 
Physiology, Hygiene, Entomology, Plant Parhologs: Course for 
Tropical Planters, Research. 
Easter Term began on April 17. 
SIDNEY SKINNER, M.A., 
Principal. 
Telephone: Kensington 899. 
BATTERSEA POLYTECHNIC. 
Principal—* Rosert H. Pickarp, D.Sc., F.R.S. 
University Courses, day and evening, under Recognised Teachers of 
the University of London are provided in Science, Engineering and Music. 
CHEMISTRY.—*J. Kenyon, D.Sc., F.1.C.; *J. L. Waite. D.Se. 
PHYSICS.—*S. Marsh, B.Sc., Ph.D. ; * A. E. Evans, B.Sc. b 
MATHEMATICS.— F. M. Saxesy, M.Sc, B.A.; *F. W. HARVEY, 
B.Sc., M.A.; *W. G. BickLky, M.Sc. 
MECHANICAL AND CIVIL ENGINEERING.—*W. E, M. 
Curnock, M.Sc., B.Eng.; *J. B. SHaw, A.R.C.S., Wh.Ex.; *H. M. 
Epmonps, B.Sc. ; * V. C. Davigs, B.Sc., A.M.1.Mech.E.; *H. L. Dine- 
WALL, B.Sc. (Eng.); K. Hamitron, B.Sc. (Eng.); A.Watson, B.Sc. (Eng.). 
ELECTRICAL ENGINEERING.—*A. T. Dover, MLE. 
A.Am.LE.E.; *H. C. Mann, A.M.I.E.E.; *H. W, HARTRIDGE,” 
A.M.I M.E,; *A. M. Parkinson, B.Sc. (Eng.). 
MUSIC.—* H. D. WETTON, Mus. Doc., F.R.C.O. 
* Denotes recognised teacher of University of London. 
There are also :— 
Day Technical College in Engineering and Science. Day Traini 
College of Domestic Science. Day Department of Hygiene aa 
Physiology. Day School of Art and Crafts. 
Evening Courses in Engineering, Chemistry, Physics, Mathematics, 
Bacteriology, Chemical Engineering, Hygiene and Physiology, Art, 
Matriculation Subjects, Domestic Economy, Music, Physical Training. 
Hostels for Women Students. Large playing fields at Merton. 
CEYLON. 
A vacancy exists foran ASSISTANT GOVERNMENT ANALYST. 
A candidate must be Associate or Fellow of the Institute of Chemistry 
by examination in Branch E (chemistry—including microscopy—of Food 
and Drugs and Water); and must have had experience in general analytical 
and bacteriological work in addition to experience in toxicological analysis. 
Honours Degree of a British University in addition preferred. : 
Salary £500, rising by two increments of £30, and one of £40 to 600in 
fourth year or on reaching age 30, then by 430 annually to £960. Rent 5 
allowance in addition. _- 
Free passages for officer and family up to four persgns inclusive. 
Appointment on agreement for three years, but reasonable prospect of 
permanent appointment if satisfactory. 
Applications should be addressed in writing to the Assistanr PrIvATE 
Secretary (Appointments) Colonial Office, S.W-1, from whom application 
forms may be obtained. Testimonials should not be sent until asked for. 
z 
SCHOOL SCIENCE SUPPLY ASSOCIATION. 
VACATION COURSE FOR SCIENCE MISTRESSES.—August 3 
to 10 (inclusive), 1923. 
SURJECT-MATTER.—The Elementary Science Course: Its Content — 
and Methods. ‘ 
DEMONSTRATORS,—Miss L. Martin Leake, Principal, S.Sc.S.A.;_ 
Miss Verinder, B.Sc.Lond., Senior Science Mistress, Winchester School 
for Girls. 
PLACE.—Winchester, at the Winchester School for Girls. 
Apply by May 15 to the Principal, 6x Conduit Street, W.1. 
ASTRONOMICAL AND MATHEMATICAL INSTRUMENTS. — 
By Order of the Executors of Col. R. G. Tupman (Decd.), 
A number of Astronomical and Mathematical Instruments, including a — 
3}-inch TRANSIT TELESCOPE by Troughton and Simms with various — 
micrometer eyepieces and a quantity of other accessories, a Nautical Sextant 
by Troughton and Simms with five telescopes and fittings complete, a 
Universal Circle by the same Makers with accessories, a Y-THEO- 
DOLITE in good condition, an Expensive Balance in excellent condition 
with set of weights, a g-inch Compass in heavy brass case with universal 
movement, etc. etc., will be included in a SALE by AUCTION of the 
Contents of the Residence known as “ Tuk Onservatory,” College Road, 
Harrow, on Wednesday May 2 next at 1.30 p.m., on the Premises as above. 
CATALOGUES can be obtained from the AUCTIONEERS: 
Messrs.'BISCOE & STANTON, F.S.1., 2 COLLEGE RoAD, HARROW-ON-THE-HILL. 
(Phone 294.) ‘ 

le ee 








For other Official and Small Advertisements see p. cxxxiv. 
