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Communications to the Editor 441 with III3 4 prepared from citrinin gave no depression. The bis-(p-nitrobenzoate) of 4-methyl-5ethylresorcinol was prepared (m. p. 205-6°) and compared with the bis-(^-nitrobenzoate) of III (m. p. 205-6°). A mixed melting point determination gave 205-206°. Anal. Caled, for C28-

ACKNOWLEDGMENT I thank E. Whalley f o r helpful discussions, and R. J.Farland, National Oceanographic Instrumentation Center, Washington, D. C., f o r sending me the observations of Carnvale and coworkers ( 2 ) .The thermal conductivities and viscosities of liquid biphenyl and the three terphenylt were measured over a range of temperatures using the hot-wire and capillary viscometer methods. These properties were also calculated as a function of temperature in the vapor phase to provide data for calculation of the performance of these compounds in heat transfer and other applications. Equations for the thermal conductivity of vapors at low pressure were formulated directly from a general equation fitted to the tabulated data of Bromley and Wilke. The viscosities of solutions of nine electrolytes-KCI, KI, KBr, KMnOd, LiCI, Lizso4, NaZC03, NaF, and MnSOd-in heavy water have been determined at 25', 35', 4 5 O , 60°, 75', and 90' C. a t various concentrations up to near saturation.

200-212 (2.0) 1.4818.941 77.46 77.79 11.08 11.36 °Saponification of the ethyl ester in diethylene glycol1" gave ethanol and cinnamic acid. Apparently methanol is eliminated during the strenuous hydrolysis.

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