The endorsements at the bottom of the 1912 ad were the same as previously: one from Walter Camp and the other from an unnamed prominent athletic director. Most of the ad is an endorsement written by Parke H. Davis. The first paragraph is most interesting.
During the season of 1911 I made a critical study of the offensive and defensive tactics of the leading foot ball teams of the East. At its conclusion my opinion was that the tactical system of the Carlisle Indian team was without any doubt the most ingenious and effective system of all. Prompted thereby I have recently made a study of the ‘Course in Foot Ball for Players and Coaches,’ written by Glenn S. Warner, the Coach of the Carlisle team. This also is far and away the most advanced and scientific presentation of expert foot ball play in existence. Mr. Warner’s course consists of twenty pamphlets, copiously illustrated with diagrams, drawings and photographs of players in action, exhaustive and complete, and covering every department of individual and team play.
Warner may have done the drawings or he may have enlisted Lone Star Dietz to do them or they each may have done some as they later did for Warner’s 1927 book. That Dietz did the cover art for the 1912 book argues for his having done some of the interior illustrations. Various “famous players” are photographed performing various football skills including kicking, punting, and catching punts. Frank Mt. Pleasant is the only player specifically identified with a photo as Warner included three frames of Mt. Pleasant throwing a forward pass. Each frame represents a different part in the throwing motion. What looks to be a young, skinny Jim Thorpe is shown dropping the ball to punt it. Gus Welch (possibly) is shown following through after punting the ball.
<more on the book next time>