TILE DKAINAGE. 147 



Debt with relation to drainage 5, 120 



Dry-earth mulch 33,24 



Drouth diminished by drainage 25 



Engineer, employment of in drainage 5, 92, 133 



Evaporation, a slow and cooling process 17, 18 



Emerson, R. W., quotations from 1, 21 



Elliott, C. G 115 



Fertility preserved and increased by tile drainage 15, 16 



Frost action, effect 011 soils and crops 2'?, 23 



French on drainage, quoted 21, 98, 99, 116 



Greeley , Horace, his dictum about drainage 7 



Growing season lengthened by drainage 19 



History of drainage why not given here 4 



Hydrostatic water 10, 11, 23 



Hoar frost explained 22, 23 



Heat makes the air hold more moisture 24 



Heal tli improved by drainage. . 27, 28, 132 



Hall,W.J3 1U8 



Johnston, John, reference to 5 



Johnson, B. F., views on drainage 30 



Joints of tiles covered to exclude silt 105 



Killmer, Charles S Ill 



Klippart on drainage 116 



Leveling for drains 84, 85, 92, 93, 94, 106 



Laterals, upper ends of 96 



direction of 64 



ending in open ditches 107 



Main drains, location of 63 



Motley, J. L., reference to 4 



Map of thorough drainage 101 



Mulch of dry earth retards evaporation 23, 24 



Main drains, direction of 63 



ending in gravel beds with no outlet 104 



National Stockman referred to 6, 103 



Ohio The Ohio Farmer, references to 6, 105, 121 



meteorological bureau 15 



population to the square mile 53 



exclusive dairying in 53, 54 



mixed or diversified farming in 54, 55 



Outlets, protecting from vermin 96 



ending in gravel subsoil 1U4, 13tf 



Primer, this book designed to be in size arid conciseness 3 



Pulverization helped by tile drainage 21,22 



Paper to cover tile-joints . . . . 1U5 



Personal letters of advice . 121 



Population to the square mile as affected by tiling and tillage 55, 57 ' 



Quicksand 106 v 



Rain fall on author's farm 15,16 



increased by drainage, tillage, and tree-planting 57, 58 



Rural New-Yorker, reference to 6 



Roots of plants need air 9, 10 



grow deeper in tiled soil 19,20 



obstructing drains 1081 11 



