Sub-surface tiling, depth below ground surface of, 67 gradient or fall of, 67 how to lay, 64 necessary length of, 66 Timed siphons for discharging contact beds, 91 Valves, English slide, 40 flap attached to sewer pipe, 41 with loose-link hinges, 42 with metallic seat, 41 hand, 39 ordinary gate, 40 sluice gate, 40 SHORT-TITLE CATALOGUE OF THE PUBLICATIONS OF JOHN WILEY & SONS NEW YORK LONDON: CHAPMAN & HALL, LIMITED ARRANGED UNDER SUBJECTS Descriptive circulars sent on application. Books marked with an asterisk (*) are sold at net prices only. All books are bound in cloth unless otherwise stated. AGRICULTURE—HORTICULTURE—FORESTRY. Armsby’s Principles of Animal Nutrition 8vo, $4 00 * Bowman’s Forest Physiography 8vo, 5 00 Budd and Hansen’s American Horticultural Manual: Part I. Propagation, Culture, and Improvement 12mo, 1 50 Part II. Systematic Pomology 12mo, 1 50 Elliott’s Engineering for Land Drainage 12mo, 2 00 Practical Farm Drainage. (Second Edition, 12mo, 1 50 Rewritten) Fuller’s Water Supplies for the Farm. (In Press.) Graves’s Forest Mensuration 8vo, 4 00 * Principles of Handling Woodlands Large 12mo, 1 50 Green’s Principles of American Forestry 12mo, 1 50 Grotenfelt’s Principles of Modern Dairy Practice. 12mo, 2 00 (Woll.) Hawley and Hawes’s Practical Forestry for New England. (In Press.) * Herrick’s Denatured or Industrial Alcohol 8vo, 4 00 * Kemp and Waugh’s Landscape Gardening. (New Edition, 12mo, 1 50 Rewritten.) * McKay and Larsen’s Principles and Practice of 8vo, 1 50 Butter-making Maynard’s Landscape Gardening as Applied to Home 12mo, 1 50 Decoration Record’s Identification of the Economic Woods of the United States (In Press.) Sanderson’s Insects Injurious to Staple Crops 12mo, 1 50 * Insect Pests of Farm, Garden, and Orchard 12mo, 3 00 * Schwarz’s Longleaf Pine in Virgin Forest 12mo, 1 25 * Solotaroff’s Field Book for Street-tree Mapping 12mo, 0 75 In lots of one dozen 8 00 * Shade Trees in Towns and Cities 8vo, 3 00 Stockbridge’s Rocks and Soils 8vo, 2 50 Winton’s Microscopy of Vegetable Foods 8vo, 7 50 Woll’s Handbook for Farmers and Dairymen 16mo, 1 50