254 Scientific Intelligence. 
30 times its weight of water takes up in the course of 24 hours the 
whole of the iron without a trace of alumina. The result obtained 
employed the old equivalent of iron 339 in bis calculations. The same 
process was also found to give accurate results in separating iron from 
zirconia, glucina, and oxyd of chromium, and in the analysis of ores of 
tin. [Note.—Should the accuracy of the methods here indicated be 
verified by other chemists, it might be advantageous to substitute a por- 
celain crucible with a bored cover and porcelain tube as recommended 
by Rosé for the far less convenient arrangement of Rivot.]|—Ann. de 
Chimie, October, 1850. 
. Capronic and CEnanthic Acids.—Brazizr and GosstEet have 
contributed many new and interesting facts to the chemical history of 
these two acids. Caproni id was prepared from cyanid of amyl 
current upon an acid of the formula Cn+2 2 gives rise to one 
and the same product. By the electrolysis of cenanthate of potash, @ 
homologous compound was obtained as an oily liquid boiling at 2U2, 
hol and ether. Its constitution is represented by Ci2His, an 
authors term it provisionally Caproyl; by repeated distillation with @ 
mixture of nitric and sulphuric acids caproyl yields capronic acid. 
Bromine has little or no action upon caproyl even in the sunlight} 
mass 
macie, Ixxv, 249. ine 
Y Amylo-sulphuric Acid.—Kerxutk has studied amylo-sulphuri¢ — 
acid and its compounds, C1oH110, SOs+SOs, RO; of the results 
obtained, however, the only one which deserves special notice '§ 
Pil 
