An Analysis of Plate-Glass. 



319 



The following numbers correspond with the foregoing re- 

 sults : — 



I. — British Plate-Glass. 



99-3583 



99-9952 



99-6768 



II. — London Thames Plate-Glass. 



100-1954 100-6919 100-4436 



III. — London and Manchester Plate-Glass. 



100-4948 100-4029 1004488 



A Table is subjoined, containing analyses of several varie- 

 ties of plate-glass, in order that the composition of the plate- 

 glass in this country maybe compared with that manufactured 

 abroad. The Venetian glass was analysed by M. Berthier, 

 the Bohemian mirror-glass by Peligot, and the French glasses 

 by Dumas.* 



* ("onip. Knapp'fl Technology, vol. 



16. 



