82 C. A, Goessmann on the Chemistry of Common Salt. 
quired to effect the solidification of the entire saline mass— 
mother-liquor and all—there remain numerous subsequent 
influences, by which a part or the whole of the saline residue of the 
tions are liable in the course of time, it would be strange indeed, 
if many eating and well preserved marine salt deposits should 
oun 
€ may assume then with some propriety, in cases 
where salt deposits are found without their associated foreign 
eactions or by erosive action on the surface layers. In all 
probability vite as many deposits have been modified in their 
physical and chemical characters by the subsequent elevation 
of their enclosing strata, a circumstance which must have favored 
the percolation of surface moisture, as have been changed by 
