200 



TABLES 216-218. 

 TABLE 216. Effect of Pressure on Melting Point. 



* A / (observed) for 10,000 kg/sq. cm is 50.8. 



fNa melts at 177.5 at 12,000 kg/cm 2 ; K at 179-6; Bi at 218.3; Pb a 

 obtains melting point for tungsten as follows: i atme, 3623 K- 8, 3594; 18, 3572; 28, 3564. 

 Phys. Rev. 1917. 



References: (i) P. W. Bridgman, Proc. Am. Acad. 47, pp. 391-96, 416-19, 1911; (2) G. 

 Tammann, Kristallisieren und Schmelzen, Leipzig, 1903, pp. 98-99; (3) J. Johnston and 

 L. H. Adams, Am. J. Sci. 31, p. 516, 1911; (4) P. W. Bridgman, Phys. Rev. 6, i, 1915. 



A large number of organic substances, selected on account of their low melting points, have 

 also been investigated: by Tammann, loc. cit.; G. A. Hulett, Z. physik. Chem. 28, p. 629, 1899; 

 F. Korber, ibid., 82, p. 45, 1913; E. A. Block, ibid., 82, p. 403, 1913; Bridgman, Phys. Rev. 3, 

 126,1914; Pr. Am. Acad. 51, 55, 1915; 51,581,1916; 52,57,1916; 52,91,1916. The results 

 for water are given in the following table. 



TABLE 217. Effect of Pressure on the Freezing Point of Water (Bridgman*). 



* P. W. Bridgman, Proc. Am. Acad. 47, pp. 441-558, 1912. 

 t i atm. - i . 033 kg/sq. cm. 



TABLE 218. Effect of Pressure on Boiling Point. * 



* Greenwood, Pr. Roy. Soc., p. 483, 1910. 



SMITHSONIAN TABLES. 



