loS 



I ABLE 93. 



COMPRESSIBILITY OF SOLIDS. 



If I" is the volume of the material under a pressure P megabars and Vo is the volume at atmospheric pressure, then 

 the compressibility = (i/l'o) (dV/dP). Its unit is cmVmegadynes (reciprocal megabars). io 6 //3 is the bulk modu- 

 lus in absolute units (dynes/cm 1 ). The following values of /8, arranged in order of increasing compressibility, are for 

 P = o and room temperature, i megabar = io dynes = 1.013 kg/cm 2 = 0.987 atmosphere. 



References to Table 92, p. 107: 



(1) Bridgman, Pr. Am. Acad. 49, i, 1913; 



(2) Roentgen, Ann. Phys. 44, i, 1891; 



:;tni-l'al;izzo, Mem. Acad. Lin. 3, 18, 1883; 

 :^'man, Pr. Am. Acad. 48, 341, 1912; 

 (s) Adams, Williamson, J. Wash. Acad. Sc. 9, Jan. 19, 

 1919; 



(6) Richards, Boyer, Pr. Nat. Acad. Sc. 4, 389, 1918; 



(7) Richanl-,, J. Am. Ch. Sex:. 37, 1646, 1915; 



\m. Acad. 47, 381, 1911; 



(9) Amagat, C. R. 73, 143, 1872; 

 do) Amagat, C. R. 68, 1170, 1869; 

 (n) Amagat, Ann. chim. phys. 29, 68, 505, 1893; 



(12) de Metz, Ann. Phys. 41, 663, 1890; 



(13) Adams, Williamson, Johnston, J. Am. Chem. Soc. 



41, 27, 1919; 



(14) Colladon, Sturm, Ann. Phys. 12, 39, 1828; 



(15) Quincke, Ann. Phys. 19, 401, 1883; 



(16) Richards el al. J. Am. Ch. Soc. 34, 988, 1912. 



References to Table 93, p. 108: 



(1) Adams, Williamson, Johnston, J. Am. Ch. Soc. 41, 39, 



tpXJK 



(2) Richards, ibid. 37, 1646, 1915; 



(3) Bridgman, Pr. Am. Acrid. 44, 279, 1909; 47, 366, 1911; 



(4) Adams, Williamson, unpublished; 



(5) Richards, Boyer, Pr. Nat. Acad. Sc. 4, 

 (6-) Voigt, Ann. Phys. 31, 1887; 36, 1888. 



5, 1918; 



SMITHSONIAN TABLES. 



