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The volumetric properties of aqueous solutions containing non-electrolytes have been determined by density measurements in the temperature range 0.5-25 "C. Linear polyols CH,OH(CHOH),CH,OH with n = 2-4 (n = 4 has three diasteroisomers), myo-inositol and t-butylurea have been studied.Vz and the coefficients of the virial expansion of the excess property (V,,, V,,, . . .) have been evaluated and interpreted in terms of solute-solute and solute-solvent interactions with the aid of the enthalpy and free-energy data where known. The theory of group contributions has been used to interpret the V,, values of those linear polyols not exhibiting solute-solute interactions at 25°C. The results confirm the relation between the signs of the enthalpic and volumetric contributions also found for other kinds of non-electrolyte.

The production of %e, Li, ^Be, ^Be, B, C, N, O, and F has been studied in the reaction 90-MeV %e+ "^^Ag. Although the yields of the heavier elements are orders of magnitude less than for %e, the energy spectra, charge, and angular distributions indicate that an equilibrium statistical process is responsible for the production of these heavy nuclei in the backward hemisphere.

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