orders for the payment of nioneion&to .:enter into such agreements. ati :•• companies customarily require aSa caniljtidn for permitting the use of fAcsitnile signaairec, • „ . 6: To.rnalcelatich genriAl and special rules and rep,ulinions with respeci tti. Such accohnts as they fiVit aqui. necessary or A