The doctor's wife opened the envelope so she could find our name and address and call to assure us that she would remail the payment.

Copies of envelopes stamped as undeliverable will also be accepted as proof, and the Post Office will remail returned items without charge.

Was it worth while, for one day, to remail the key and the slip to himself so they wouldn't be in his possession between now and tomorrow morning when he could use them?

Nor anything left for him to do except the minor annoyance of having--say once a week until he was absolutely sure he was completely safe and completely unsuspected-- to pick up the storage slip and remail it to himself.