irregular deposit

from Bouvier's Law Dictionary, Revised 6th Ed (1856)
IRREGULAR DEPOSIT. This name is given to that kind of deposit, where the 
thing deposited need not be returned; as, where a man deposits, in the usual 
way, money in bank for safe keeping, for in this case the title to the 
identical money becomes vested in the bank, and he receives in its place 
other money. 
    

[email protected]