"Demands in the nature of unliquidated damages arising otherwise than by reason of a contract or promise shall not be provable in bankruptcy, and no person having notice of any act of bankruptcy available for adjudication against the bankrupt shall prove for any debt or liability contracted by the bankrupt subsequently to the date of his so having notice.
>
> Save as aforesaid, all debts and liabilities, present or future, certain or contingent, to which the bankrupt is subject at the date of the order of adjudication, or to which he may become subject during the continuance of the bankruptcy by reason of any obligation incurred previously to the date of the order of adjudication, shall be deemed to be debts provable in bankruptcy, and may be proved in the prescribed manner before the trustee in the bankruptcy.
>
> An estimate shall be made according to the rules of the Court for the time being in force, so far as the same may be applicable, and where they are not applicable at the discretion of the trustee, of the value of any debt or liability provable as aforesaid, which by reason of its being subject to any contingency or contingencies, or for any other reason, does not bear a certain value.
>
> Any person aggrieved by any estimate made by the trustee as aforesaid may appeal to the Court, and the Court may, if it think the value of the debt or liability incapable of being fairly estimated, make an order to that effect, and upon such order being made such debt or liability shall, for the purposes of this Act, be deemed to be a debt not provable in bankruptcy, but if the Court think that the value of the debt or liability is capable of being fairly estimated it may direct such value to be assessed with the consent of all the parties interested before the Court itself without the intervention of a jury, or if such parties do not consent by a jury, either before the Court itself or some other competent Court, and may give all necessary directions for such purpose, and the amount of such value when assessed shall be provable as a debt under the bankruptcy.
>
> 'Liability' shall for the purposes of this Act include any compensation for work or labour done, any obligation or possibility of an obligation to pay money or money's worth on the breach of any express or implied covenant, contract, agreement, or undertaking, whether such breach does or does not occur, or is or is not likely to occur or capable of occurring before the close of the bankruptcy, and generally it shall include any express or implied engagement, agreement, or undertaking, to pay, or capable of resulting in the payment of money or money's worth, whether such payment be as respects amount fixed or unliquidated; as respects time present or future, certain, or dependent on any one contingency or on two or more contingencies; as to mode of valuation capable of being ascertained by fixed rules, or assessable only by a jury, or as matter of opinion."