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. 
