case parson and coal versus dr BRIDDOCK all follow wright v Morley Ves refer  to Newton v Chorlton draw April Eq can ab pl S c the principal in a bind be  arrest give bail and judgement be have against the bail on a bill by the  surety who have be sue on he original bind and pay the money decree the  judgement against the bail to be assign to they in order to reimburse they  what they have pay with interest and cost plaintiff in be bind as surety for  Mr Briddock and have counterbond Briddock the principal be afterward arrest  and the defendant his brother become his bail and judgement be obtain against  the bail the plaintiff be sue on the original bind be force to pay the money  and now bring their bill to have the judgement obtain against the bail assign  unto they in order to be reimburse what they have pay per Lord chancellor the  bail stand in the place of the principal and can be relieve on other term than  on payment of principal interest and cost and the surety in the original bind  be not to be contributory for a surety only engage to make good the deficiency  per Loughborough chancellor Rees v Berrington Ves jun et vide further as to  principal and surety where time give or contract alter as between principal  and creditor Sheflield v Lord Castleton ante p and therefore Vernon chancery  case decree the judgement against the bail to be assign to the plaintiff in  order to reimburse they what they have pay with interest and cost Vernon  chancery case er p and although the plaintiff by their bill have unadvised  charge that they have agree to pay a equal proportion of the debt yet the  defendant have by answer deny they make any such agreement that set the  plaintiff at large and leave they at liberty to demand the whole against the  defendant and decree it accord so in case of bankruptcy of original debtor  surety may compel the creditor to prove the debt under the commission who  thereupon become in equity a trustee for the surety beardmore v cruttenden  cook bank law Vol but now by saint g IV c S if the creditor have not prove the  surety himself may prove his demand as a debt under the commission