The result of this drainless irrigation is an efflorescence of salt on the surface of the field.
The evidence for it is not to be confused with that for the law of rapid efflorescence of groups just considered.
He pointed to the efflorescence of new forms that had come into existence under the protection of man.
The manufacture of glass, also practised in Egypt, demanded a knowledge of sodium or potassium carbonates; the former occurs as an efflorescence on the shores of certain lakes; the latter was obtained from wood ashes.
Wall-saltpetre or lime saltpetre, calcium nitrate, Ca(N03)2, is found as an efflorescence on the walls of stables; it is now manufactured in large quantities by fixing atmospheric nitrogen, i.e.