ELASTIC FORCES OF AQUEOUS VAPOUR. 583 
TaBLE III. continued. 
Series L. 
Tempera- Tensions. Tempera- Tensions. | 
Th se pets LN a pifferences ThEee Difference. 
ermom.,. ermom. 
No. 7. | Observed. | Calculated. No. 7. | Observed. | Calculated. 
a mm mm mm Pe mm mm mm 
0°00 4°66 or Ae 24°36 22°65 | 22°668 —o'02 
0*00 4°67 Pech oe 27°09 26°64 | 26°646 0°00 
foore) 4°64. hs Se 27°09 26°68 vd . 
0°00 4°62 -° ae 28°27 28°58 nse os 
0°00 4°64. a0 hes 28°28 28°65 | 28°564 | --o'09 
0*00 4°66 $5 oa 26°87 26°36 | 26°31 +0'05 
0°00 4°67 e =A 26°37 CAR tt lie we 
0°00 4°66 . oe 33°71 38°92 “5 ois 
0700 4°66 oe aia 33°70 38°37 | 38°909 | —0'04 
9°77 9°93 ae Me 37°07 46°33 a “+ 
9°80 g'02 9°044. | —o'o2 37°06 46°89 | 46°845 | +0°04 
9°33 9°07 se sie 37°06 46°82 we ae 
12°75 I1I°00 ok oe 41°03 57°97 | 58°002 | —0'03 
12°75 10°98 | I0°982 | —o'0o 4103 58°06 . os 
15°63 13°13 “E is 41°02 57°97 es es 
15°63 13°18 | 13°22 —0°04 44°08 68°21 se ar 
18°94 16°25 44°08 68°24. ° 
18°97 16°27 16-284 —o'o! 44°08 68°09 | 68°072 | +0'02 
18°97 16°29 35°13 42°29 | 427129 | +016 
21°37 18°77 Se AS 35°13 42°35 es s 
21°37 18°82 | 18918 —o'1o 35°13 42°27 << ais 
24°36 22°64 “i ae 
Szrizs M. 
o*00 4°66 oe an 26°68 26°08 | 26012 | +0'07 
0°00 4°66 ae +. 26°68 26°10 ee os 
0700 4°66 sie Sc 36°15 44°54 oe ty 
25°69 24°51 a 5 36°17 44°63 +e aa 
25°69 | 24°54 | 24°533 | —o'or 36°17 | 44°65 | 44°615 | +0'03 
35°37 | 43°86 44°39 | 69°31 
35°87 | 43°90 | 437886 | +0%o1 44°38 | 69°25 | 69°142 | 0°13 
43°66 66°67 rie == 51°22 97°41 | 97°718 | —o'30 
43°66 66°60 | 66°602 0°00 51°21 97°39 ee Ze 
43°62 66°57 ae je 53°61 | 109°90 oe we 
49°58 go"10 | 907076} +0%02 53°63 | 109°96 | 109°954 0°00 
49°58 go"04 ss ee 53°66 | 110°16 ~ 
49°58 | 90°04 - . 58°34 | 137°29 
14°37 12°25 12°220 | +0°03 58°38 | 137°78 +. =s 
14°40 12°30 te =f 58°37 | 137°66 | 137°632 | +0703 
26°69 26°12 
The preceding Tables contain all the experiments which I have made upon the 
elastic forces of aqueous vapour at low temperatures; but I do not look upon all 
the series as being equally accurate. Thus the series J. K. is but little trust- 
worthy, merely because the differences between the calculated and observed num- 
bers increase constantly with the temperature. 
IV. The methods which I have described in the foregoing 
chapters are only applicable for temperatures below 60° or 70°; 
at higher temperatures the water divides itself so quickly into un- 
