Supplement to Nature Tune 9, 1904.] 



Amongst the Specialities and Protected Desi gns of Messrs. 

 P, Harris & Co, are i — 



Atwood Machine. 



Automatic Apparatus for starting and stopping Stop Watch 

 to use with above. 



D'Arsonval Galvanometer. 



Deflagrating Spoons with removable Cups. 



Balances for Students' use 



Weights for Students' use. 



Extensometers. 



Minute Ammeter. 



Laboratory Benches with patent arrangements for bottles. 



Laboratory Fittings generally. 



Manual Instruction Benches. 



Birmingham Municipal Technical School Galvanometers, 

 Bridges, &c. 



Aluminium Pulleys. 



Mechanics' Apparatus. 



Pure Acids for Analytical Work. 



Pure Reagent Chemicals. 



Stroud and Rendell Lantern. 



Stroud and Barr Lantern Copying Apparatus. 





liUNtiAY, SUFFOLK. 



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