29 6 
INDEX, 
Wood, charcoal from, to beobtained by 
different kinds of wood, 100. 
— ■, in the combustion of, what 
quantities of heat to be developed, 
105. 
— , in the ditto of birch wood, 108. 
Wood, in the ditto of various woods; 
111 . 
— — — , on the carbonization of, what 
quantities of heat lost, 115. 
Woodward, M., his letter, respecting 
an error discovered in his elementary 
treatise on astronomy, 177 ; 
END OF THE THIRTY-FIFTH VOLtTME. 
Printed by G. Sidney, 
Northumberland-street, Strand, 
