right of way for cattle beginning citizens perfection to hang ex will a part  to call again to be able si autem to hang ex will third mask well ex  contigenti non to be able in act that be full execute and consummate the law  make this difference that if the first party have put it in the power of a  three person or of a contigency to give a perfection to their act then they  have put it out of their own reach and liberty therefore there be no reason  they shall revoke they but if the consummation depend upon the same content  which be the inception then the law account it in vain to restrain they from  revoke of it for as they may frustrate it by omission and non feisance at a  certain time or in a certain sort or circumstance so the law permit they to  dissolve it by a express consent before that time or without that circumstance  therefore if two exchange land by deed or without deed and neither enter they  may make a revocation or dissolution of the same exchange by mutual consent so  it be by deed but not by parole for as much as the make of a exchange needs no  deed because it be to be perfect by entry which be a ceremony notorious in the  nature of a livery but it can be dissolve but by deed because it discharge  that which be but title maxim f n Br h h r parliament so if I contract with I  d that if he lie I into my seller three tun of wine before mich that I will  bring into his garner quarter of wheat before Christmas before either of these  day the party may by assent dissolve the contract but after the first day  there be a perfection give to the contract by action on the one side and they  may make cross release by deed or parole but never dissolve the contract for  there be a difference between dissolve the contract and release or surrender  of the thing contract for as if lessee for year make a lease for year and  after he take a lease for year yet this can inure by way of surrender for a  petty lease derive out of a great can be surrender back again but inure only  by dissolution of contract for a leaseof land be but a contract executory from  time to time of the profit of the land to arise as a man may sell his corn or  his tithe to spring or to be perceive for diverse future year but to return  from our digression on the other side if I contract with you for cloth at such  a price as I S shall name there if I S refuse to name the contract be void but  the party can discharge it because they have put it in the power of the three  person to perfect so if I grant my reversion though this be a imperfect act  before atturnment yet because the atturnment be the act of a stranger this be  not simple revocable but by a policy or circumstance in law as by levy a fine  or make a bargain and sale or the like so if I present a clerk to the bishop  now can I not revoke this presentation because I have put it out of my self  that be the bishop by admission to perfect my act begin the same difference  appear in nomination and election as if I feoff such a one as I d shall name  within a year and I d name I b yet before the feoff and within the year I d  may countermand his nomination and name again because no interest pass out of  he but if I feoff I S to the use of such a one as I d shall name within a year  then if I d name I b it be not revocable because the use pass present by  operation of law so in judicial act the rule of the civil law hold opinion  interlocutoria to call again to be able that be that a order may be revoke but  a judgement can and the reason be because there be a title of execution or bar  give present unto the party upon judgement and so it be out of the judge to  revoke in court order by the commonlaw Edward f Q imp Edward Edward