May 25, 1905J 



NA TURE 



BY ORDER OF THE SECRETARY OF 

 STATE FOR INDIA IN COUNCIL. 



India Office 



WANTED, for servJc 

 LnmSelh. London. S.E., 

 TIFIC SUPPLIES'; 



Cindidates must have a 



Whitehall, S.W., 



May 23, 1905. 

 the India Store DepSt. Belvedere Road, 

 ASSIST.\NT INSPECTOR OF SCIEN- 



wledce of optical 

 inp and similar instrument^, and of balances as used for chemical, 

 and mint purposes. Thev must also have a thorough knowledge of physics 

 and be acquainted with the general princip'es of electricity. 



Age, 25 to 30, Salary, C^^o per annum, rising by annual increments of 

 ;£io, on satisfactory report, to ;£35o per annum. Pension under Civil 



The selected candidate will he examined by the Medical Roard at the 

 India Omce, and will only be appointed If passed by the Board. 



Forms of applic,aiion can be obtained by writing to the Director General 

 of Stores, India Office, Whitehall, London, S.W., not later than June 5, 



1905. 



E. GRANT BURLS, 

 Director General of Stores. 



THE GLASGOW AND WEST OF 

 SCOTLAND TECHNICAL COLLEGE. 



The Governors invite applications for a LECTURESHIP in CIVIL 

 ENGINEERING which it is proposed 10 establish. 



The salary attached to ibe post is C'^\q per annum, and the lecturer must 

 be prepared to give his whole time to the College. 



Applications and testimonials must be sent not later than May 31 to the 

 Secrktakv. 38 Bath Street, Glasgow. 



LONDON INTER-COLLEGIATE 

 SCHOLARSHIP BOARD. 



versily, King's, and East London Technic 



SCHOLARSHIPS at University, 

 Colleges. 



Intending candidates 'ihould apply 

 Board, King's College, S-rand. 



L:i'^t day for entry May 30. 



the Secretary of the 



UNIVERSITY COLLEGE, 

 NOTTINGHAM, 



A LECTURER AND DEMONSTRATOR required in the Chemical 

 Department. Salary commencing at £130, and rising by ^lo pT annum tc 

 i^iSo. Applications to be sent in by June 30 addressed to the Registrar, 

 from whom application forms and particulars as to duties, &c-, may be 



BIRKBECK COLLEGE. 



The Council invite application?; for 

 LECTURER IN MATHEMATICS 

 from September i next. Applications 

 tions, teaching experience, and encio 

 Principal not later than Tuesday, June so. 



Birkbeck College, 



Breams Buildings, Chancery Lane, E.C, 



le appointment of ASSISTANT 

 Commencing Salary i:i75, to date 

 tating age, degree^ and qualifica- 

 ig testimonials, must reach the 



For other Scholastic Adve.rtiset)U7ii s^ see fa^^es sx 



A FIRST-CLASS BINOCULAR MICRO- 



SCOPE (RO.SS PATTERN), in good condition, circular movable 

 stage with soring clips substaee, rack movement, flat and concave 

 mirror with double arm, polariscope, wheel of diaphragms, stand con- 

 denser, pair of eyepieces, triple nose piece, 4 objectives (J, Jf. t and 2 

 in.), live box, stage forceps, parabolic illuminator, camera lucida, in 

 inaliogany boxes, also with mahogany stand and glass shade ; cost 

 about ;^45, price ;^3o.— Address *' Beta," at the office of this Journal. 



Metallurgical Laboratory, well equipped for 



experinienial wcrk, to let at low rent. One minute from Station. 

 Fifleen minutes to City. Apply M 

 .Stoke Newington, N. (close 10 St.ali 



,HAi.L ,>l Co.. Campb-ll Works 

 , G.E.K.). Tel., 79 Dalston. 



i8-inch Apps-Newton Coil for sale, in perfect 



condition. No trace of o.vidalicn on the vulcanite. G. Bowron, 

 57 Edgware Road, W. 



TYPE-WRITING UNDERTAKEN BY 



HIGHLY EDUCATED WOMEN ACCUSTOMEO TO 3CIRN. 

 TIFIC MSS. (Clas-ical Tripos, Intermediate Arts, Cambridge Higher 

 IxHial. thorough acquaintance with Modern Languages). Resean:h, 

 Revision, Translation. Scale of charges on apnhcation. The Cam- 

 bridge Type-wn.ing Agency, to Duke Street, Adelphi, W.C. 



THE SYTAM SYSTEM 



Saves an incredible amount of wall space and 

 completely utilises dark corners, recesses, and 

 out-of-the-way places. 



Prevents crowding' and confusion. 



Allows for extension as and when required. 



Always room for more, hence reorganisation 

 seldom or never necessary. 



Saves time, lightens work, and increases comfort 

 by producing- perfect order in the Laboratory, 

 Library, Study, Home, Office. &e. 



soiwie: sytabi fittin^gs. 



1. the bottle element. 



One hundred 4 oz bottles are arranged in one 

 Sytam Bottle ■ Element occupying less than 

 1 sq. ft. of Tvall space, eacn bottle Is Instantly 

 located, removed or replaced, and any size from 

 * oz. to a Winchester can be accommodated in 

 one and the same element. 



2. THE CLOSED-FRONT BOOK ELEMENT. 



3. THE OPEN-FRONT BOOK ELEMENT. 



4. THE AUTHOR'S FILE. 



For division of subject into headings, chapters 

 or sections. 



THE TWIN DESK TRAYS. 

 THE PAMPHLET PILE. 



THE SYTAM FITTINGS CO., 



18 & 19 BASINGHALL BUILDINGS, LEEDS. 



DR. H. STROUD'S 



Apparatus for 



DETERMINING THE 



VELOCITY OF 



SOUND IN AIR, BY 



THE METHOD 



OF RESONANCE. 



The Resonance Tube is 3 ft. 

 long, with a graduated scale 

 fi.\ed at the side. The sliding 

 reservoir moves easily in a 

 grooved frame, so that the water 

 level can be quickly altered. 



Price, in Polished Mahogany 

 Stand, 24/- 



sor^E ivia.ke:rs_ 



BRADY & MARTIN, Ltd , 



Scientific Jlpparatus Wakers, 

 NEWCASTLE-UPON-TYNE. 



Makers and Dealers in all kinds of Chemical and Physical 



Apparatus for Schools and Collegres, Works' Laboratories 



and Special Research Work. 



