[16] In “Value for Rate-Making.”

[17] Material in parentheses is the author’s.

[18] In “Modern Accounting.”

[19] In “Depreciation and Wasting Assets.”

[20] In “Modern Accounting.”

[21] Chart adapted from “Regulation, Valuation and Depreciation,” by S. S. Wyer.

[22] Leonard Metcalf paper on “Water-works Valuation and Fair Rates” before the American Society of Civil Engineers, Vol. LXIV, 1909, page 16.

[23] In “Depreciation and Wasting Assets.”

[24] Spring Valley Water Co. v. San Francisco, 165 Fed. Rep. 703.

[25]