Preface xxvii. 



carbon deposits, and a gill of denatured alcohol 

 poured into each cylinder has proved effective 

 in loosening the carbon so that it may be 

 readily blown out through the exhaust. 



So speaks the New York trade paper ; going 

 East I noticed Tke Indian Trade fournai 

 told us in an article last January, in which it 

 also discussed the question of liquid fuel, that 

 ''Alcohol, although in many cases an excellent 

 fuel, is not commercially practicable in those 

 countries which impose a high excise duty 

 upon it, as in Great Britain, whereby its 

 price is rendered prohibitive. It is a vegetable 

 product, obtained by the fermentation and 

 distillation of grain, &c. It has a specific 

 gravity of '820, is moderately Volatile, and 

 has a greater explosive range for variable 

 proportions of gas and air than petrol and air, 

 and can stand a much higher compression 

 without self-ignition taking place. Methylated 

 alcohol, or wood spirit, is the commercial 

 article mostly used in preparation of varnishes, 

 &c. French alcohol is purer and cheaper. 

 Wood naphtha is also sold as distinct from 

 mineral naphtha." 1 



On June 12 the same paper {Indian Trade 

 Journal} tells us India, as one of the largest 

 producers of vegetable substances suitable for 

 the manufacture of industrial alcohol, is keenly 



1 Coco-nut planters, instead of losing the milk, as well 

 as those having manila and sisal fibre refuse, could also 

 make alcohol, so should note these particulars. 



