ITS ERRORS AND CORRECTIONS, ETC. 
483 
TABLE XI.—SuMs oF DIFFERENCES OF BIFILAR DaiLy MEANs AT TREVANDRUM, 1842. 











Month. ZAt ZAR q’ Month, ZAt 
6 Se. div. Sc. div. a 
January,. .| 16:83 42:0 2°50 SUEY ore peng’ li, See 
February,. . 15-43 35°3 2°29 August, ..... 18°31 
March, . .| 18954 13:2 0-71 September, . | 15-29 
mpc. 4 . | 17-51 34:1 1:95 October, . .j| 22°89 
ev ss «3 |p red'O2 35'8 1:21 November, ./| 16°62 
Sune, . .*. 22:64 ny i 078 December, . 20-59 




ZAR q7 
Se. div. Se. div. 
50:2 2°32 
32°9 1:80 
22-0 1:44 
48-0 2°10 
12-7. 0:76 
27-0 1:31 

The partial results are very irregular, on account of the smallness of the dif- 
ferences of temperature. ‘The final result is,— 
q' = 1°57 sc. div., with a probable error of 0°15 sc. div. 
When the differences of the daily mean readings, which were corrected for 
temperature and exceeded five scale divisions, were rejected, as well as all the 
differences corresponding to differences of temperature under 0°5 Fahr., the 
result was found,— 
gq = 1°56 se. div. ; 
whence 
[gq] = 0-000212, 
By water experiments, 
q = 0:000253. 
Therefore, 
[q’] = 0-838 g, 
34. Bar, No. 5. 
January 2, 1843, to April 25, 1843, k = 0-000149, 
May 2, 1843, to March 30, 1844, & = 0:000141. 
as 1846, k = 0-000144. 
April 1, 1844, to 
In the following table, the sums of readings have all been reduced to the value 
of k=0:000144. 
TABLE XII.—Sums or DIFFERENCES OF BIFILAR DAILY MEANS AT TREVANDRUM, 1843-45. 






















1843. 1844, 
Months. 
Sannary; .°. ° » |18 29 
Pepruary, . . . .| 970 
meen, . . . . 1/1626 
pope, ew ww ns | 2465 
Stee is = ys 5402 
eer ee ST 
ieee: 6 | BEG 
maenst, .  » ». . plop 
September,. . . . | 10°74 
October, . . . . | 20°47 
mvovember,. . .' . | 19°07 
December, . 



VOL. XXII. PART III. 

