44 



James Mann : 



Madave 



Kokoilo. 



Mean ash per cent. = .3198, 



Appendix, 26th June, 1911. 



Subsequently to the paper being read, the calorific power of 

 the charcoal was ascertained. The experiments were carried out 

 with the latest form of the " Berthelot-Mahler-Krocker Bomb 

 Calorimeter," the formula used being that supplied with the ap- 

 paratus. The equivalent of the calorimeter was first ascertained 

 by burning known weights of naphthalene, and the constant thus 

 obtained was used throughout the experiments. 



