HARVARD COLLEGE LIBRARY BY EXCHANGE APR 27 1929 Smithsonian Institutions. EXTRACT FROM THE SOCIETY'S BYE-LAWS "The Society will not be responsible for the accuracy of the statements or conclusions contained in the several papers in the Journal, the authors themselves being solely responsible." The Trials of Hop-Washing Machines at Maidstone By MONTAGUE C. H. TAYLOR and WILLIAM CHAMBERS. The Thinning and Pruning of Forest Areas. (With Four Illustrations) By CHARLES E. CURTIS. . 617 Louping Ill and the Grass Tick (With Seven Illustrations). . 626 Official Reports. |