Frontispiece.-Case 536, July 9, 1906. A locoed steer poisoned by having eaten stemless loco-weed (Aragallus (Oxytropis) Lamberti). Note the swelling and the curvature of the fetlock joints, which is peculiar to some locoed animals; the rough coat, staring eyes. In the last stage, the animals eat and drink very little. After Marsh C. Dwight: The Loco-weed Disease. Farmers' Bulletin 1054, Fig. 10, page 14, July, 1919. PASTORAL AND AGRICULTURAL BOTANY FOR THE STUDY OF THE BY JOHN W. HARSHBERGER, PH.D. PROFESSOR OF BOTANY, UNIVERSITY OF PENNSYLVANIA; FORMER LECTURER FARMERS' INSTITUTES NEW YORK; PRESIDENT OF THE PHILADELPHIA NATURAL HISTORY SOCIETY, PHILADELPHIA, 1920. WITH 121 ILLUSTRATIONS PHILADELPHIA P. BLAKISTON'S SON & CO. |