A favorite surface for a Briggs picture is a gesso panel. The final sketch is transferred to this in careful outline and the painting is done in oil or sometimes casein. It is not unusual for one or more partly completed or even completed paintings to be discarded before the obstinate Briggs standard is satisfied. Some of his friends think that he is too exacting and that some of his best work finds its way into the wastebasket. Actually, in spite of the dogged pictorial battle he fights, he…