In discussing the mailing of the letter purporting to terminate respondents' liability, we did not mean to be understood as holding that its introduction, without objection, with the only evidence offered as to its mailing, was conclusive evidence of its receipt. Upon a new trial, the mailing and receipt of the letter will be an open question.
Petition for rehearing denied.
Wm. E. Lee, C.J., and Givens and T. Bailey Lee, JJ., concur.