80 — 



IV. Conclusions 



(1) With regard to the condensation of wood vinegar in Japanese 

 kilns, so long as a proper method is adopted no disadvantage will follow 

 in the quality of the charcoal, the percentage of the yield and the time 

 of carbonization. 



(2) The quantity of calcium acetate produced in the Japanese kiln 

 does not exceed one-quarter of the quantity produced through dry dis- 

 tillation. Still owing to the simple fittings used in the condensation of 

 wood vinegar, the charcoal burner of small means will find some profit 

 from using his spare labor to obtain this secondary products. 



(3) As to wood spirit, the quantity produced is too small to be 

 taken into account. 



