Knight v. Causby

1. The construction of a written contract or any particular clause therein is for the court, except when the contract is ambiguous. In the latter event parol testimony is admissible to ascertain the intention of the parties. Where a second contract has its inception in a previous one, and neither is mentioned in the other, but from the provisions of both it is doubtful whether the second is in full satisfaction of the first, it is proper to admit parol testimony to ascertain whether it was the intention of the parties to execute and accept the second contract in full satisfaction of the first.