y^ 



CO 5^1 



A WEEKLY ILLUSTRATED JOURNAL OF SCIENCE. 



" To the solid ground 

 Of Nature trusts the mind which builds for aye." — Wordsworth. 



No. 1662, Vol. 64] 



THURSDAY, SEPTEMBER 5, 1901. 



[Price Sixpence. 



Registered as a Newspaper at the General Post Office.] 



[All Rights 



ANEROID BAROMETER, 



framed in solid oak, handsomely 

 carved, with silvered engraved 

 dial, and thermometer. Of highest 

 quality throughout. Suitable for 

 hall or library. 



16 mcheshigh ... £4 14 6 



20 „ , ... £6 16 6 



CIRCULAR OAK FRAME 



BAROMETER, £1 5 0. 



rhese Instruvicnts are English 

 throughout^ materials, work- 

 manship, and carving. 



nade), 

 Illustrated Catalogue, ^. 



walked (London 

 from 17/6 each. 



NEWTON & CO., 



3 FLEET ST., LONDON. 



NEW PHYSICAL LABORATORY TABLES. 



THE NEV^ 



"LONDON" 



MICROSCOPE. 



With Eye -piece | inch, \ inch 



Object ■ glasses, in Mahogany 



Case, 



£5 12s. 6d. 



Double Nose-piece, 9/- extra. 

 Focussing Substage, 14/6 extra. 



R. & J. BECK, Ltd., 



68 CORNHILL, 



REYNOLDS & BRANSON, Ltd., 



Manufacturers of Laboratory Fittings and every description 



of Scientific Apparatus. 

 Estimates and] 1. II E ID S. [Catalogues Free. 



»H:C3-I£ETTI Sc ^.A.lVE:BXe,.A.'S 



NEW PATTERN COIHBINED 



BARO-THERMOGRAPH. 



The above inslrumem combines in one apparatus the Recording Baro- 

 meter and Recording Thermometer, giving thus on one and the same chart 

 continuous records of the atmospheric pressure and temperature for seven 

 days. 



llhiUratcd piice lists of ScUntiJic Instruments free !>y fyost to all i>arts 

 of the world. 



NEGRETTI & ZAWIBRA, 



38 HOLBORN VIADUCT, E.G. 



Branches : 43 CORNHILL, .inti i:: REGENT STREET. 

 AWARDED TWO GOLD MEDALS PARIS EXHIBITION, 1900. 



