difficult year 1920 marked the end of the Buyer; etc. xyi H. F. O. Bower, The Ferns (Cambridge, 1923); G. C. Simpson (Simla 1908-9), K. Kihler (Potsdam 1908), Schindelhauer (Potsdam 1909-11), A. Baldit (Puy-en-Velay 1910-11), McClel-