Supplement to '' Nature^' June 24, 1922 



SURPLUS 



X=Ray & Electro=Medical Stores 



The MEDICAL SUPPLY ASSOCIATION Ltd. 



167-185 GRAY'S INN ROAD, LONDON, W.C.I, 



have acquired the surplus X-Ray and Electro- Medical Stores of the 



WAR OFFICE 



They are therefore able to offer apparatus by the best makers at a fraction of current prices. 

 The whole of the apparatus has been thoroughly tested and re-conditioned, enabling them to 

 offer same WITH THEIR GUARANTEE THAT IT IS IN 



PERFECT WORKING ORDER AND CONDITION 



THE STOCKS COMPRISE MODERN APPARATUS IN GREAT VARIETY 

 OP AN ESTIMATED VALUE OF £100,000 



Turbine Type Mercury Interrupters, fitted with independent motor drive, 



iron clad type, gas di-electric . . . . . . . £6 10 



Motor Rheostats, complete with switch and plug, on oak base, for regulating 



the speed of motor mercury breaks £16 



Spare Condensers for X-Ray Coils, in case, with terminal connections 



£1 15 

 Best quality Intensifying Screens, in perfect condition : 



Size : 8J in. by 6J- in., £1 ; size : lo in. by 8 in., £1 : 7s. ; size : 12 in. 

 by 10 in., £2 ; size : 15 in. by 12 in., £3. 

 Intensifying Screen Cassettes, aluminium, to take plates up to 15 in. by 



12 in £1 10 



Plate Changing Boxes, for use beneath oatient, fitted with aluminium top, 



each " £1 10 



Protective Lead Rubber Sheeting, for lining X-Ray tube boxes, shields, 



screens, etc., and for reinforcing of inadequate protective devices, 



per lb £0 4 6 



Protective Opaque Lead Rubber Gloves, per pair . . . £0 15 

 X-Ray Tube Stands, in oak, with racking movements in the horizontal and 



vertical directions, complete with protective X-Ray shield .£850 



Etc 



Modern 12 in. spark Intensified Coils, with variable primary, discharging 

 pillars and condenser and valve tube support, mounted in polished teak 

 cases, horizontal pattern £28 



Modern 12 in. spark Intensified Coils, complete with variable primary, 

 condenser, secondary discharge terminals, covered polished ebonite, 

 vertical pattern £30 



10 in. Spark Coils, by various makers ...... £10 to £15 



Marble-top Switch and Resistance Tables, movable, fitted with amperemeter, 



switches, fuses, crank regulator, etc £22 



Electro-Magnet on tubular stand £40 



Amperemeters, 5 in. diameter, reading 0-5, o-io, a-15 or 0-20 amperes, 

 fitted side or back connections, best quality, each . . .£250 



Voltmeters, 5 in. diameter, reading o-io, o-ioo, 0—150, 0-200 or 0—250 volts, 

 fitted side or back connections, each ..... £2 5 



Milliamperemeters, 5 in. diameter, for X-Ray work, fitted with protective 

 condenser, reading 0—5 milliamperes, and fitted with shunt switch to 

 increase range to 0—25 or 0—50 milliamperes, lacquered brass case, 

 moving coil type, best make £3 



Etc. 



NOTE.-RE-CONDITlOiNED AND IN PERFECT WORKINQ ORDER. 



SEND FOR SURPLUS CATALOGUE No. 2, NOW READY. 



EXPORT ORDERS WILL RECEIVE IMMEDIATE ATTENTION AND DESPATCH. 



In those Countries where this class of goods is subject to Importation Tax a very considerable saving can be 

 effected by ordering these stores. 



An UNPRECEDENTED OPPORTUNITY for Technical Colleges, Industrial 

 Laboratories, Hospitals, Doctors, Nursing Institutes, Sanatoria, &c., &c. 

 Skilled engineers supplied to install the apparatus where desired. 



Applications for apparatus should be marked "SURPLUS" and addressed to MEDICAL SUPPLY 

 ASSOCIATION Ltd., Electrical Department, 167-185 Gray's Inn Road, London, W.C.I, 



stating apparatus required, voltage of your electrical supply, and whether constant or alternating 

 current is available. A detailed specification and estimate will be sent you by return. 



