Osborn writes that he is delighted that the Celtic pony is to be added to the type collection in the American Museum of Natural History. He believes it will be advantageous to have the pony exposed to the winter climate to bring out its distinctive coat characteristics. He is glad to hear from Ewart about the progress being made with the zoological park. At present he is busy completing the Titanothere volume, but he will appreciate Ewart's researches when he comes to the horse volume.