clxxiv 



NA TURE 



[February 27, 1902 



EAST LONDON TECHNICAL 

 COLLEGE. 



The following Day Courses of SliRlies are now being held, \\i. :— 

 „ . . f J. L. S. Hatton, M.A..and 



Mathemalics \ W. F. S. Chukchim., M.A. 



Phyiics K. A. Leiikeldt, D.Sc. 



Chemistry J- T. Hewitt, D.Sc. 



Engineering (Mech.) D. A. Low, M.I.M.E. 



Engineering (Elec.) J. I. Morris, A. Inst. C.E. 



The Courses, which include a good deal of Laboratory work, together 

 with French and German, are intended for Students, Male and Female, 

 fiom Secondary Schools and other pupils of good general education. 



A Special Course is arranged for Students preparing for the Degrees of 

 the London University. 



Fee, per Term, {.T, V. ; per Session, ii 71. 

 The Drapers' Company offer Entrance and other Scholarships. 

 For further information apply to J. L. S. Hatton, M..\., Director of 

 Studies. East London Technical College, Mile End Road, L. 



UMVERSITV OF LONDON SPECI.\L CL.\SSES. 



LONDON HOSPITAL MEDICAL 



COLLEGE. 



Special Classes for the Preliminary Scientific M.B. (London) E.\amination. 



Botany and Zoology. By P. Chalmers Mitchell, M.A. Oxon., F.Z.S. 



Chemistry and Physics. By Hugh Candy, B.A., B.Sc. Lond. 



Fee for the whole Course, 10 guineas. 



Students who have recently matriculated can join tli.~.- ( 1.-..^. -^ .nt once. 

 MUNRll -^li 111', W.irden. 



ST. MARY'S HOSPITAL MEDICAL 

 SCHOOL, 



PADDINGTON, W 

 PRELIMINARY SCIENTIFIC COURSE. 

 Systematic Courses, including Lectures and Laboratory Work, are held 

 throughout the year. Students who have recently matriculated_ and who 

 <lesire to present themselves for the Preliminary Scientific Examination in 

 January, 1903, should join the class not later than March 3. 

 Inclusive fee ij. 5. 

 For particulars apply to the Dean. 



UNIVERSITY COLLEGE, LONDON. 



FACULTY OF MEDICINE. 

 The SUMMER SESSION begins on May i. 



The work is arranged so that a Student may advantageously begin bis 

 medical curriculum then. 



Full information may be obtained from either of the undersigned. 



J. R. BRADFORD, M D., D.Sc, F.R.S., Dean of the Faculty. 

 T. GREGORY FOSTER. Secretary. 



BRITISH MUSEUM. 



The Reading Rooms will W Closed from Saturday, March i, to 

 Wednesday, March 5, inclusive. 



British Museum, E. MAUNDE THOMPSON, 



February 24. 1002. Director and Principal Librarian. 



SCIENTIFIC COACHING, 



PRACTICAL AND THEORETICAL. 



PHYSIOLOGY, BOTANY, GEOLOGY, CHEMISTRY & PHYSICS. 



, Hcathcote Sti 



:t. Gray's Inn Road, W.C. 



RATIONAL AND PRACTICAL EDUCA- 

 TION FOR BOYS at t lacton College, Clacton-on-Sea ; for aims 

 and methods see illustrated prospectus. Headmaster, Harold Picton, 

 B.Sc.(Lond.), Gold, Silver and Research Medallist of University College. 



BOROUGH OF WEST BROMWICH. 



The Municipal Technical Instruction Committee invite applications for 

 the position of HEAD MAS TER to start a mixed Day School of Science. 



Applicants must be graduates of a University, and have had previous 

 teaching experience at a Science School or Public Elementary School. 



The gentleman appointed will be required to enter on the duties on July 

 I, 1902. 



Commencing salary, Ci^o per annum. 



Particulars of duties, &c., can be obtained from the undersigned, to whom 

 applications, stating age, teaching experience and qualifications, and en- 

 closing copies of three recent testimonials, must be sent on or before March 



•''■ ''"'■ T. GILBERT GRIFFITHS, 



The Institute, Secretary to the Technical Instruction Committee. 



West Bromwich. , , 



Appli 



HARTLEY COLLEGE, 

 SOUTHAMPTON. 



pal S. W. RICHAKDSUN, U.Sc-tLondon). 



lions are invited for the Appointment of ASSISTANT LEC 

 in MATHEMATICS. 

 j£i20 per annum. 



10 commence in April. _ 



giving particulars of age, Iraimng, »iualificati 

 with copies of three recent testimonials, must be 

 Kj from whom further particulars may be obtained, 

 1902. 



It to the 

 or before 



UNIVERSITY COLLEGE OF SOUTH 



WALES AND MONMOUTHSHIRE, 



CARDIFF. 



DEMONSTRATOR IN CHEMISTRY. 



The Council invites applications for the post of DEMONSTRATOR IN 

 CHEMISTRY during the Summer Term, rjoz. 



For further particulars apply to the undersigned. 



Applications to be sent in not later than Friday, March 7, addressed to 

 the Professor of Chemistry. 



J. AUSTIN JENKINS, B.A., 



February 4, 1Q02. Reg,strar_. 



THE DURHAM COLLEGE OF SCIENCE, 

 NEWCASTLE-UPON-TYNE. 



DEPARTMENT OF AGRICULTURE. 



The Council invite applications for the PROFESSORSHIP. Stipend, 

 iJsoo per annum. Applicati< 

 undersigned ..« ■> ' 



; be forwarded I 



Mardi -•.,. 



F. H. PKL'KN, Se 



APPLICATIONS are invited up to May i 



for the position of ASSISTANT CHEMIST in an .Australian Manu- 

 facturing Industry. Salary, ^iidoo pei annum. Candidates must have 

 received a thorough scientific training at a University or Institution of 

 University standing, anil he preferably under 26 years of age. — Further 

 details can be obtained 1-v wiuir.i; t.i Messrs. P.arbury, Hentyand Co., 

 20 Kaslcheap. London. i.> ul .i|.|ili.;aliuns are to be .addressed. 



MR. R. A. BUDDICOM, B.A.Oxon., F.G.S., 



Curator lately resigned of the Plymouth Museum and Art Gallery, acts 

 as Consultant in Designing Museum Buildings, Ca.ses, Collections.— 

 17 Craven Hill Gardens, Hyde Park. W. 



J. BACKHOUSE & SON, 



LIMITED, 



(SCIENTIFIC DEPART.MENT) 



Supply all Botanical Material required for Lecture and Demon 



stration purposes and for Class-work. Fresh, or preserved ii 



Alcohol. Insectivorous Plants. Plants for Physiological Experi 



ments. Museum Specimens. Microscopical Preparations. 



Prices s'rirthi moderate. 



TO SCHOOLS & STUDENTS. 



DRAWING INSTRUMENTS. 



STUDENT'S CASE (as figured), from 



4/6 to £3 3 0. 



lihist rated Price' List Post -Free on ntentioti- 



/b^Natlkk. 



ASTON & MANDER, 



61 OLD COMPTON ST.. LONDON, W. 



I. .shippers On; M-rr.ham--. sprrial discount. 



AN UNiaUE SERIES OF LANTERN SLIDES 



From Negatives by Mr. OLIVER G. PIKE. Showing Birds, 

 Nests, Eggs and Voung in their Natural Situations and Surroundings. 



"LIVING ANIMALS." 



Fifty Slides, from recently taken Negatives. 



i*~ See Nature, February 13, p.igc 350. 



SoU Publishers : 

 SANDERS & CROWHURST, 71 Shaftesbury Avenue, W. 



LIIJUID AIR IN LESS THAN 10 MINUTES. 



Dr. H.\MPS0NS AIRI.IQUEFIER is now made 10 a standard pat- 

 tern, and numbers are in use in University Laboratories and elsewhere ir 

 The whole apparatus is neat and compact and its part: 



iily moved ; the Liqueficr, without stand, being a cylinder 17 inche 



It begins to liquefy air in from 6 to 10 minutes after the adn 

 t from 150 to 200 atmospheres pressure, making over a litre of liquid pe' 



It requires no ice and salt, carbonic acid, or other auxiliary refrigerant. 

 It produces a perfectly clear liquid, which requires no filtering. 

 It works all day long day after day without plugging of pipes or valves. 

 The operator has only one gauge to watch, and one valve to control. 



For Price anil l'articul;trs apply to the Sole Makers : — 



ERIN'S OXYGEN COMPANY, LIMITED, 



WESTMINSTER, LONDON. 



