The witness offered by the defendants should have been allowed to testify, as the facts proposed to be shown would have tended to prove a want of consideration. It is not necessary for a party to disclose his whole defense, in order to entitle him to the admission of evidence having a tendency to prove it.

It is only in cases where the proposed evidence has no apparent relevancy, that it is necessary tosíate the whole ground upon which it is based.

Judgment reversed.