Where the mules on a plantation are not mentioned in the mortgage, nor in the sheriff’s notice of seizure, appraisement, advertisement and act of sale, it will be held that the mules attached to the plantation were not mortgaged nor sold.

2. Where a receipt between two parties specifies that one of them still owes the other a specified amount, unless explained, said receipt will be presumed to evidence a fall settlement of all prior claims between the parties.