From the NannyMUD documentation

LAST CHANGE

2000-12-15

FUNCTION

NAME
        add_money - add money to a living object


SYNTAX
	void add_money(int amount);

DESCRIPTION
	The local function is called in living objects to add a certain
	amount of coins to their total amount of money.  


NOTE
	To avoid 'inflation' in the mud, strict guidelines should be
	followed as to monetary rewards. 
	Use a negative amount to charge players money in shops, etc.


SEE ALSO
        query_money in lfun/living/query_money


SEE ALSO
        monster.r in RULES/monster