96 



Prof. G. Quincke on the Constants of 



The constant for sulphur is calculated from the experiments 



of Frankenheimf, and that for wax from those of WertheimJ. 



2a 

 Besides the constant u, the Table gives a 1 —"— and a, where 



a is the specific gravity of the fluid. I have determined the 

 specific gravity cr for the temperature 0°, with the exception 

 of those cases which are marked * ; and I have calculated a for 

 the melting-point. The values of a which are given in these 

 cases are more or less unreliable, on account of our ignorance of 

 the expansion-coefficients, the precise melting-points, and the 

 expansion or contraction which takes place during the process 

 of melting. 



Table I. 



Capillarity-constants of Molten Bodies. 



Substances. 



Melting- 

 point. 



c . 



(7. 



cc. 











mgrms. 





(2000) 

 (1950) 



20033 



18-915 



16904 



2. Palladium 



11*4 * 



10-8 



(136-4) 



100-22 



87-68 



3. Gold 



1200 

 360 



18-002 

 7119 



17-099 

 6-900 



4. Zinc (in CO 2 ) 



5. Zinc (in air) 



360 



7-119 



6-900 



82-79 



6. Cadmium (in CO 2 )... 



320 



8-627 



8-394 



70-65 



7. Tin .. 



230 



7-267 



7144 



59-85 



8. Mercury 



-40 



13596 





5879 



9. Lead (in CO 2 ) 



330 



1000 

 265 



11266 



10621 



9819 



10-952 

 10 002 



9-709 



45-66 

 42-75 

 38-93 



10. Silver 



11. Bismuth (in CO 2 ) .... 



12. Potassium (in CO 2 )... 



58 



0-865* 





(37-09) 



13. Sodium (in CO 2 ) 



90 



0-972 





25-75 



14. Antimony (in CO 2 )... 



432 



6620 



6-528 



24-92 



15. Borax 



(1000) 

 (1000) 



2-6 * 



25 



21-60 



16. Carbonate of soda.... 



2-509* 



2-45 



20-96 



17. Microcosmic salt 





2-502 



2-45 



20-57 



18. Chloride of silver 





5-55 * 



55 



1901 



19. Glass 



(i'loo) 



1200 



2 452 



2-380 



18-09 



20. Carbonate of potash .. 



2-300 



2-2 



16-33 



21. Chloride of calcium.... 





2-219 



215 



1531 



22. Chloride of lithium.... 





1-998* 





1207 



23. Chloride of sodium.... 





2-092 



2-04 



11-63 



24. Boracic acid 



(1300) 

 339 



1-83 * 



1-75 



10-69 



25. Nitrate of potash 



2-059 



204 



9-954 



26. Chloride of potassium. 







1-932 



1-870 



9-516 



27. Water 







217 



-21 



111 



43 



1 



4-3 * 



3187 



2033 



1-986* 



i-2 

 3-25 



1-966 

 1-833 



8-79 



7-180 



6-328 



4-207 



4-194 



2)r>. Selenium 



29. Bromine 



30. Sulphur 



31. Phosphorus (in CO 2 ). 



32. Wax 



68 



0-963 





3-40 



a 2 . 



a. 



sq. mill. 



millims. 



17-86 



4-227 



25-26 



5-026 



11-71 



3-423 



25-42 



5042 



24 



4-899 



16-84 



4103 



1675 



4094 



8-646 



2-941 



8339 



2-887 



8-549 



2-923 



8-039 



2-831 



85-74 



8-768 



52-97 



7-278 



7635 



2-764 



1728 



4-254 



1711 



4-136 



16-79 



4-098 



6-911 



2-629 



1521 



3-899 



14-82 



3-846 



14-24 



3-774 



1210 



3-478 



11-40 



3-377 



12-22 



3-495 



9-759 



3124 



10-18 



319 



1758 



41 93 



3-419 



1-849 



3-895 



1-973 



4-280 



2068 



4-575 



2140 



7-061 



2657 



t Pogg. Ann. vol. lxxii. p. 193 (1847). 

 X Comptes Rendus, 185/, vol. xliv. p. 1024 



