xii, a, 3 Wells: Destructive Distillation 125 



The yields of methyl alcohol, acetic acid (100 per cent), 

 charcoal, and tars have been tabulated to show average perr 

 centages of products obtained by laboratory practice. 



Controlled distillation has shown results higher than those 

 of the noncontrolled distillation in average percentage yields 

 of methyl alcohol and acetic acid. These results are analogous 

 to those found by Palmer. 17 



A short discussion of costs and operating expenses is added. 



17 Loc. cit. 



