EXAMINATION OF A NAPHTHA FROM LIME-SOAP. 



207 



hydro-carbons, belonging to four distinct series, and all boiling within a range of 180° 

 centigrade, is a result in obtaining which we feel amply repaid for all the time and 

 labor which this exceedingly tedious research has cost us. Certainly no more stringent 

 test of the efficiency of the process of " Fractional Condensation," as contrasted with 

 the old methods of distillation, need for the present be required. 



Boston, August, 1864. 



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