[336] 4 I.C.C. Rep., 611; 9 Idem, 382. But compare 23 Idem, 663, fixing the rate on stock cattle at 75 per cent. of that for beef or fat cattle. How about cost of service here?

[337] 10 Idem, 327.

[338] Cf. revenue per ton mile by commodities, p. [421], infra.

[339] Cf. p. [412], infra, on the significance of revenue per ton mile.

[340] 6 I.C.C. Rep., 88; 9 Idem, 382; 4 Idem, 48. On freight rates and prices compare Rep. U. S. Industrial Commission, XIX, p. 366, and chap. X, infra.

[341] Hammond, Railway Rate Theories, p. 14 et seq.

[342] Ibid., pp. 27 and 36.

[343] Ibid., p. 29.

[344] 14 I.C.C. Rep., 127.

[345] Freight, February, 1905, p. 61.