INDEX 
Investment, as a basis for rate-fixing, 
Wisconsin Railroad Commission, : 
138, 158. Maine Supreme Court on hazard, 160. 
definition, 25. Maintenance, definition of deferred, 24. 
protection of, 127. Management, 293. 
(see Rate-base). Market value, affected by rate-fixing 
Irrigation canal as an aid in creating procedure, 195. 
land values, 5. defined in recent court decisions, 197. 
Irrigation water, value of, 208. definition, 16. 
Ithaca filters, engineering expenses, 47. not what the purchaser can afford to 
pay, 199, 202. 
K of real estate, 197. 
Kansas City Water-works case (see used ia he wluation of mines, 235. 
value multiple, 203. 
Court cases). aia Massachusetts Metropolitan Water- 
Kennebec Water District case (see Al : 
works, administration expense 
Court cases). at. 40, 
Knoxville Water Company case (see Massachusetts public service control, 
Court cases). rey 
Methods of procedure in fixing rates, 1. 
L may affect market value, 195. 
Land retired from use, Interstate Com- Metropolitan Water-works, Massachu- 
merce Commission quoted, 232. setts, engineering expenses, 44. 
Lead in the United States, production policing expense, 49. 
and price, Table 17, 262. Michigan Railroad valuation, overhead 
Life, actual and probable, assumptions allowance, 53. 
made, 83, 105. Mineral products, price of, 244. 
composite, definition, 22. Mines and oil properties, valuation of, 
departure of actual from probable, for owner’s information, 246. 
academic discussion justified, for purchase or sale, 24s. 
105. for taxation, 247. 
effect of departure of actual from limitations upon accuracy, 237. 
probable, 172. methods, 238. 
hypothesis of failures, 107. purposes, 237. 
merit of assumed law of failures, 107. Mining risks, 242. 
of various articles, Table 30, 415, 418. Mining investments, proper rate of 
period of usefulness not usually as interest, 241. 
estimated, 107. Minnesota Rate cases (see Court cases). 
probable, its definition, 20. 
probable life, iii, 20. N 
probable life not always realized, 37. New York, control of public utilities, 
remaining, its definition, 21. 147. 
unlimited life, 35, 132. engineering expenses at water-works, 
Limited franchise (see Restricted fran- 44. 
chise). general expenses at water-works, 48. 
Louisville sewage works, Kentucky, police expense at water-works, 49. 
engineering expenses, 46. Public Service Commission law, 69. 
a 493 
M