inverse order of alienation

The doctrine that where land subject to a paramount encumbrance is subsequently sold or encumbered in parts or parcels at different times, no intention being disclosed in the instrument that the purchaser or the encumbrancer of the part should pay the whole or his proportion of the paramount encumbrance, the parcel retained by the grantor should be first subjected to the discharge or payment of the paramount encumbrance, and the parcels alienated or encumbered should be reached only in the event the parcel retained by the grantor is not sufficient to pay the paramount encumbrance in full, and then only to the extent of the deficiency and in the inverse order of alienation; and that if all of the land covered by the paramount encumbrance has been successively alienated or encumbered in parcels, the parcel last alienated or encumbered must be first exhausted for the payment or discharge of the paramount encumbrance, before the parcel alienated or encumbered next preceding to the last may be reached, and so on in that order until the parcel first alienated or encumbered is reached, if need there be, provided the alienee or the junior encumbrancer of the party against whose parcel recourse must be had had notice of the prior alienation or encumbrance of another part. 35 Am J1st Marsh A § 32. A doctrine analogous to but at the same time in contrast with the doctrine of marshaling assets. 35 Am J1st Marsh A § 33.