658 Prof. a. W. Todd and Mr. S. P. Owen on a 



Water. 



Constants determined from temps. 27° G. and 77° 

 (equation 2). 



log ]0 A' = 8-0947, B = 5495, for p in mm. 



Temp. C 0. 10. 30. 50. 



pmm. (obs.) 4"58 921 3T5 91-9 



p ,. (calc.) 4-7G 9-36 31 -8 9T4 



Constants determined from temps. 27° C. and 77° 

 (equation 1). 



l°gio A.= 8'1636(5, B = 5546*3, for p in mm. 



Temp. C 0. 10. 20. 40. 60. 



pmm. (obs.) 4'58 9-21 17'5 55T 149 



p „ (calc.) 4-67 9-25 17"! 54"6 148 



Temp. C 100. 150. 200. 250. 300. 



pmm. (obs.) 760 3570 1160 3000 6760 



p „ (calc.) 772 3810 1290 3310 6810 



Mercury. 



Constants determined from temps. 50° C. and 150° 

 log 10 A' = 7-1898, B = 7818, for p in mm. 



Temp. 10. 30. '' 60. 100. 



pmm. (obs.) -00043 "00257 "0246 '276 



p (equation 2) "00045 -00264 '0245 -278 



p (equation 1) * — — — — 



Temp. C. ...... 200. 250. 300. 3567. 



p mm. (obs.) 17-8 75"8 249 760 



p (equation 2) 18-2 80"3 272 850 



p (equation 1)* 176 76-6 257 790 



Temp. C 400. 450. 500. 600. 700. 



pmm. (obs.) 1570 3230 6100 17000 38100 



p (equation 2) 1810 3710 7020 20001 45540 



p (equation 1)* no density data. — 



* Obtained by multiplying 3rd row by the ratio : — 



(density at stated temperature) 

 (average density between 50° and 150° C.)' 



c 



70. 

 233-3 



233 8 



0. 



80. 

 355 

 353 



c. 



150. 



2-88 

 9-«7 



800. 

 77600 

 111200 



