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A WEEKLY ILLUSTRATED JOURNAL OF SCIENCE. 



"INTENSE" HAND FEED 

 ARC LAMP. 



Probably the most efficient Hand Feed Arc Lamp 

 on the marKet. 



REYNOLDS & BRANSON, LTD. 



MAGNALIUM 



BALANCES. 



The beam, standard, and 

 pans of these balances are 

 made of magnalium, which is 

 lighter and cleaner than brass, 

 and not as readily affected by 

 fumes and gases. The knife- 

 edges and planes are of agate. 



31 O 



32 O 



Scalpels with fine pointed Blades 

 ^--uchtsmen. complete with Mapping P 



R. & J. BECK, Ltd., 68 CORNHILL, LONDON, E.C. 



