114 C. Barns — Compressibility of Hot Water and 



though, this cannot be sharply determined. The experiment 

 lasted about one hour. A subsidiary table 3, contains the 

 essential results (time, temperature 0, volume decrement v/ T 7 ", 

 compressibility fi) of table 2. The experiment was satisfactory 



throughout. 



Table 2. — Compressibility of Water. 



e. l, t 



P- 



|X103. 



£xl0 6 . 



e, l, t 



P- 



V 

 -X103. 



/3xl0 6 . 





Atm. 









Atm. | 







24 c 



20 



o-o 







185° 



20 



o-o 





13-96 cm 



100 



3-6 



45 



14'80 cm 



100 



9-8 



123 





200 



7-9 



44 



35 m 



200 



22-9 



127 





300 



12-2 



44 





300 



35-0 



125 



*185° 



20 



o-o 





185° 



20 



o-o 





15-42 cm 



100 



6-2 



77 



14-58° m 



100 



11-7 



146 



18 m 



200 



14-2 



79 



40 m 



200 



24-9 



138 





300 ; 



21-0 



75 





300 



38-9 



139 



185° 



20 



o-o 





185° 



20 



o-o 





15-Hcm 



100 



7-6 



95 



1434cm 



100 



12-9 



161 



25 m 



200 



17-7 



98 



45m 



200 



29-3 



163 





300 



27-8 



99 





300 



46-1 



165 



185 c 



20 



o-o 







185° 



20 : 



o-o 





15-01 cm 



100 



. 8-7 



109 



14-03 cm 



100 



14-7 



184 



30 m 



200 



20-6 



114 



50 m 



200 * 



32-8 



182 





300 



31-9 



114 





300 ! 



52-0 



186 











185° 



20 1 



o-o 





* Commenced boiling at m . 



13-75 cm 



100 



18-3 



229 











55 m 



200 i 

 300 i 



39-4 



60-5 



219 

 216 





185° 



Threads broken off. 











13-56 cm 



Measurement uncertain. 











60 m 



Siliceous water, 



solid. 



Table 3. — Expansion and Compressibility of Silicated vjater, referred to water at 24 c 



and 20 atm. 



e. 



^Xl03. 



/3xl0 6 . 



Time. 



d. 



T* 108 - 



/3xl0 6 . 



Time. 



24° 



± 



44 





185° 



+ 44 



141 



40 m 



185° 



+ 103 



77 



18 m 



185° 



+ 27 



163 



45m 



185° 



+ 86 



97 



25 m 



185° 



4- 05 



184 



50™ 



185° 



+ 75 



112 



30 m 



185° 



- 15 



221 



55 m 



185° 



-'- 60 



125 



35 m 



185° 



- 29 







60™ 



8. The discussion of this table can be given on the lines 

 followed in case of § 6. Xote at the outset that after 55 m have 

 elapsed since exposure to 185°, the hot turbid column is not 

 so long as the original cold clear column at 24°. The hot com- 

 pressibility after 55 m has increased to five times the cold com- 

 pressibility, and to three times the original hot compressibility. 



