[60] Acts of 1911, Chapter 231, Section 19.

[61] Acts of 1911, Chapter 231, Section 20.

[62] Acts of Massachusetts, 1906, Chapter 393; and Revised Laws, Chapter 50, Section 1.

[63] Acts of Washington, 1907, Chapter 153, Section 20.

[64] Charter of New York City, 1901, Article 950.

[65] Acts of Massachusetts, 1906, Chapter 393, Section 5.

[66] Changed by Chapter 536, Acts of 1913.

[67] Report of Chief Engineer, Board of Estimate and Apportionment, October 19, 1907, p. 3.

[68] Ibid., p. 14.

[69] Report of Chief Engineer, Board of Estimate and Apportionment, October 19, 1907, pp. 5 ff.