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A., discussion of "Effects of Water Temperature <br />on Bcd-Load Movement," by J. J. Franco, Journal of the Waterways and Harbors <br />Division, ASCE, Vol. 95, No. WW2, Proc. Paper 6528, May, 1%9, pp. 247-255. <br />29. Taylor, B. D., and Yanoni. V. A., "Temperature Effects in Low-Transport, Flat-Bed <br />Flows," Journal of the Hydraulics Division, ASCE, Yol. 98, No. HY8, Proc. Paper <br />9105. Aug., t972, pp. t427-1455. <br />30. Tison, L. J., "Studies of the Critical Tractive Force of Entrainment of Bed Material," <br />Proceedings, International Association for Hydraulics Research, Minnesota Interna- <br />tional Hydraulics Convention, Minneapolis, Minn., 1953, pp. 21-35. <br />31. Vanoni, V. A., "Measurements of Critical Shear Stress for Entraining Fine Sediments <br />in a Boundary Layer," California Institute of Technology, Pasadena, Calif., Report <br />No. KH.R,7, May. 1%4.47 pp. <br /> <br />The following symbols are used in this paper: <br /> <br />coefficients related to I and J; <br />roughness function; <br />drag coefficients; <br />total sediment concentration, in parts per million by weight; <br />depth of water; <br />median sieve diameter; <br />drag, lift, and resistant forces acting on sediment particle, <br />respectively; <br />Darcy-Weisbach friction coefficient; <br />gravitational acceleration; . <br />coefficients in dimensionless unit stream power equatIOn; <br />number of data; <br />water discharge; <br />total sediment discharge; <br />wd/v = fall velocity Reynolds number; <br />U.djv ~ shcar velocity Reynolds number; <br />correlation coefficient between data and results predicted by , <br />equation; <br />water surface slope or energy slope; <br />shear velocity; <br />average water velocity; <br />critical average water velocity at incipient motion; <br />local velocity at distance y above bed; <br /> <br />APPEN~X n.-NOTATlON <br /> <br />aI' a2, bl, b2 <br />B <br />CD'C~ <br />C, <br />D <br />d <br /> <br />FD' FL' FR <br /> <br />f <br />g <br />I, J <br />N <br />Q <br /> <br />.3 <br /> <br />q, <br />R,( <br />R" <br />r <br /> <br />S <br />U. <br />V <br /> <br />v" <br />V, <br /> <br /> <br />., <br /> <br />~ <br />.1 <br /> <br />