One of these special clauses provides in substance that in the event of foreclosure of the mortgage the mortgaged premises may be sold in one parcel. Such a clause is naturally needed only in a mortgage which covers more than one lot. The mortgage might cover four adjoining lots A. B. C. and D. Should the holder of the mortgage, by reason of a default, foreclose on the property he must offer the lots for sale one at a time and only so many are sold as will bring sufficient to meet his claim. In addition if the mortgagor has sold any of the lots before the foreclosure, the mortgagee is met with the rule that the lots must be sold in the action "in the inverse order of alienation," i.e. he must first sell such of them as are still owned by the mortgagor, then the rest by selling, the last one sold, first and so on back to the first lot sold by the mortgagor. Should a sale of the lots separately not produce sufficient to pay the mortgagee's claim he may then offer them for sale in bulk taking whichever offer brings the highest bid. This entails inconvenience and many properties are of more value in one piece. Hence the clause permitting sale in one parcel is usually used unless the property mortgaged be a single lot.