INDEX. 225 



PAGE 



Drainage district, mutual 208 



, provision of outlets for 201 



Drainage engineer, the i 



Drainage, civilizing effects of 2 



, growth of .2 — 6 



, profits of 216 



Drains, avoid short crooks in 49 



, how designated 73 



, names, for in systems. 42 



, open 150 



Drop, how proportioned 87 



Drought and drainage 219 



Estimates for drainage districts 214 



of number of feet of drains per acre 94 



of total cost 214 



preliminary 94 



. Excavation, computing 169 



Experimental investigations- . , 24 



Experiments at Maryland Station 25 



at Germantown, Ohio 30 



at Newbern, N. C 28 



at Litiz, Pa 30 



at Lexington, Ky > 30 



at Washington, D. C 29 



at Windsor, Conn 30 



at Madison, Wis 38, 39, 40 



Fall, available 85 



definition of 85 



Fertilizers, effect upon soil moisture 30 



Field-notes, form for - S^) 7^ 



how kept 74 



Flag-poles 55 



Flow of water through pipes 126 



tile drains 130 



Formula, application of. 162 



, examples of use of, for open drains. 164 



for quantity of discharge , , 130 



for velocity of flow in open drains. 161 



Formulas for velocity of flow ,,.. ^ ,,,,,,. . 128, 129, 132 



