Scope and Contents Irving asks Ewart for his opinion of the paper concerning the Equus robustus horse type, and encloses a copy of the Section D paper from the British Association. He reports that he saw and handled the horse tooth found in the Piltdown gravels, and he believes it to be part of Equus robustus. He wonders whether it would be worth a short note in Nature, and wonders how far back Equus...