Temperature, and Volume in Saturated Vapours, 305 



—273° C, and common logarithms is 



lo gjP =7-5030-^f, .... 



which gives 



/ 7579 \* 

 V7-5030-log^j 



The following table gives the values of p calculated from t 

 with Eegnault's experimental values and values calculated by 

 Kankine's formula for comparison : — 



(7) 



(7a) 



Tempera- 

 ture, 

 Centigrade. 



Tempera- 

 ture, 

 absolute. 



Pressure 

 in millims. 

 Regnault. 



Pressure 

 in millims. 

 by formula. 



Error 

 in millims. 



Pressure 

 in millims. 



by 



Rankine. 



Error 

 in millims. 



o 

 -30 



o 



243 



0-386 



•401 



4- -015 



•35 



-•036 



-20 



253 



0-91 



•982 



+ -072 



•89 



-•02 



-10 



263 



2-08 



2-229 



+ -149 



2-07 



-•01 







273 



4-60 



4-709 



+ -109 



4-47 



-•13 



5 



278 



6-53 



6-69 



+ -16 







10 



283 



9-17 



9-40 



+ -23 



9-05 



-•12 



15 



288 



12-70 



13-01 



+ -31 







20 



293 



17-39 



17-83 



+ -44 



17-33 



-•06 



25 



298 



23-55 



24-07 



4- -52 







30 



303 



31-55 



32-18 



4- -63 



31-57 



4- -02 



35 



308 



41-83 



42-61 



4- -78 







40 



313 



54-91 



55-72 



4- -81 



55-05 



4--14 



45 



318 



71-39 



72-24 



4- -85 







50 



323 



91-98 



92-85 



4- -87 



92-26 



+•28 



55 



328 



117-48 



11830 



4- '82 







60 



333 



148-79 



149-48 



4- -69 



149-15 



4- -36 



65 



338 



186-94 



187-50 



4- -56 







70 



343 



233-08 



233-61 



4- '53 



233-48 



+•40 



75 



348 



288-50 



288-60 



4- -10 







80 



353 



354-62 



353-59 



-1-03 



355-04 



+ •42 



85 



358 



433-00 



433-21 



4- -21 







90 



363 



525-39 



523-48 



-1-91 



525-70 



+•31 



95 



368 



633-69 



633-72 



4- 03 







100 



373 



760-00 



757-35 



-2-65 



760-0 







105 



378 



906-41 



904-27 



-2-14 







110 



383 



1075-4 



1071-5 



-3-9 



1074-8 



-•6 



115 



388 



1269-4 



1263-3 



-6-1 







120 



393 



1491-3 



1485-6 



-5-7 



1490-1 



-1-2 



125 



398 



1743-9 



1735-4 



-8-48 







130 



403 



2030-3 



2020-2 



-10-1 



2028-0 



-2-3 



135 



408 



2353-7 



2347-5 



- 6-2 







140 



413 



2717-6 



2710-2 



- 7-4 



2713-8 



-3-8 



145 



418 



3125-6 



3114-6 



-110 







150 



423 



3581-2 



3564-5 



-16-7 



3575-5 



-5-7 



155 



428 



4088-6 



4064-4 



-24-2 







160 



433 



4651-6 



4633-4 



-18-2 



4643-6 



-8-0 



165 



438 



5274-5 



5262-6 



-12-9 







170 



443 



5961-7 



5941-6 



-20-1 



5951-2 



-10-5 



175 



448 



6717-4 



6694-2 



-23-2 







200 



473 



11689-0 



11665-4 



-23-6 



116750 



-140 



230 



503 



20926-0 



20951-7 



4-25-7 



20945-0 



+19-0 



Phil. Mag. S. 5. Vol. 21. No. 131. April 1886. 



