‘ Sx. 53. a Sy a Sivigee 1819. wy oe Me. ep 
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THE 
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“THE VARIOUS BRANCHES OF SCIENCE, 
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“NUMBER CCEIL 
For APRIL 1819. 
WITH AN ENGRAVING. BY PORTER, oe 
oe Tilustrative of Mr: Meixxe’s Paper on Calorific Radiation; f Mr, & 
‘Lowe's on the Purification of Coal Gas; and Mr, Hucues’s 
or ascertaining Distances. 
y= «BY ALEXANDER TILLOCH, 
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