RURAL ENGINEERING. 



991 



with nlcaliol. 'I'lic fuels testt'd \ven> iioii/.iiio. nlcoliol, and n niixturo of ak-oiiol 

 witli liiMizol and ergin. Tile motor was rated at Ki horsepower, hut in tlie test 

 witli imre motor alcohol 21.!)() horsepower was developed. The investigation 

 proved that a nuxture of ergin or henzol eonsiderahly lowered tlie fuel consump- 

 tion, and at the present price of alcohol, benzol and ergin mixtures therefore 

 considerai)l.v reduce the operating cost. 



The following table shows the several fuel consumptions in pounds i)er brake 

 horsepower hour : 



I'ikI i-oiisiniipfi'iii ix'i' lii'<il:f hursciintnr Jioiir. 



In order t.» ascertain the cost of operation from these values, the mean con- 

 sumption of 0.(j2 lb. per horsepower hour was assumed for a 12-horsepower en- 

 gine adapted for use on a threshing machine. At the present prices in Germany 

 of alcohol and the mixture ingredients, it was found that the cost of operation 

 would be !f;i.ttO per lO-hour day. The writer concludes that in view of the 

 many advantages of the alcohol engine and the fact that it uses as fuel an 

 agricultural product, such an engine is the most suitable of all the prime movers 

 for farm purposes. 



Industrial alcohol: Its manufacture and uses, J. K. Brachvogel and C. J. 

 Thatcher {\ctr YorJ:: IJ inni d- Co.. J HOI, mt. 5 Hi. pax. 107). — After a general 

 discussion of the adaptability of denatured alcohol to various purposes and its 

 importance to the farming interests of the country, the authors devote several 

 chapters to an account of the materials and processes involved in alcohol 

 manufacture. Following this, some data, mostly compiled from foreign sources, 

 are given on the use of alcohol for power, heating, and illumination, and 

 statistics are presented on alcohol production in the T'nited States and foreign 

 countries. 



Three months of denatured alcohol (Sci. Aincr.. [Hi (I'JUl), Xo. l). jtp. 

 JSG. .>S1). — In this arti<-le .-ittentioii is directed to tlie present status of the 

 alcohol industry under the denatured alcohol law. it being pointed out that 

 no sweeping revolution of industrial or agricultur.il c(mditions. sudi ;is w;is 

 predicted prior to the passing of the act, has as yet been brought about. 

 Although certain ethyl alcohol industries have been stimulated, methyl alcohol 

 production has in no way been materially affected. It is stated tliat denatured 

 alcohol is now ()btainai)le at from oo to 40 cts. per gallon, depending upon the 

 locality, and while this price prohibits active competition with gasoline or 

 kerosene at present prices, there is every reason to believe that it will eventually 

 decrease in price when uses are I'onnd Inr tlic by-]iroducts of its manufacture, 

 and when its uses as a fuel and in the arts liecome more widespread. 



The recent amendment to the law is menti(med in connection with tlie manu- 

 facture of alcohol on a small scale. T'nder this amendment denaturing ware- 

 lioiises may be disjieused with when the capacity of the still is less than ItK) 

 proof gals, per day. the .mIcoIioI beinu conveyed to warehouses for denaturing 

 l»y pipes or cars. It is tlie epininn of the writer, however, that commun:U 

 rather than individual distilleries, or, in other cases, distilleries oi)erated on 



