Section 51. Where a person, having contracted to sell or otherwise dispose of his estate or any part thereof, af

51. Where a person, having contracted to sell or otherwise dispose of his estate or any part thereof, afterwards becomes lunatic, the Court may, if the contract is such as the Court thinks ought to be performed, direct the manager of the estate to execute such conveyances and to do such other acts in fulfilment of the contract as it shall think proper.