( 318 ) 
log p == 3.23522 + 0.2165 1. 
] [ 7 
if | log p (cale.) | log p (obs.) | p p (calc.) | p (obs.) 
; — mn 
1.9 | 3.64757 | 365514 | + 0.00857 1432, 4520 
9.2 | 3.74159 | 3.71850 | 4 0.00698 5147 | 5930 
9.6 | 3.79812 | 3.77595 | — 0.02987 G282 | 5960 
2.8 | 3.84149 | 3.80956 | — 0.03186 6941 | 6450 
39 | 3.99802 | 3.90309 | — 0.02493 | 8473 8000 
3.7 4.03627 | 4.01662 | — 0.01965 | 40871 10390 
4A 412987 | 4414364 | -+ 0.02077 | 43970 | 13920 
! i | 
BR eh 
The mean error of log p being: WL =e = 0.00979 the error- 
: ; b 
factor of p is 1.053 and the mean error of p is 5.3 °/,. 
Considering that 3 galvanometer readings are necessary which 
individually ought to have errors of much less than 0.5 ®/,, but 
which are to be taken all at the same time and therefore are 
more inaccurate, a mean error of 5.5 °/, in the result, representing 
an interval of less than a tone may not be called extravagant. 
For series 2. I find: loy p= 3.47786 + 0.18453 J. 
j | log p (cale.) | log p (obs.) £ p (cale.) | p (obs.) 
4 of Ts aera 3.79239 | + 0.00083 6189 | 6200 
2.4 3.92073 3.91009 — 0.01064 | 8332 8130 
2.8 3.99454 3.99211 — 0.00243 9875 9820 
3 0 4.03145 4.04922 | + 0.01777 | 10751 | 411200 
3.5 4 A2371 4.13322 | + 0.00951 | 13296 13590 
308 416062 4AM | — 0.01511 | 414475 | 13980 
| 
SEE 
OW 5 = (o)° = 0.01228 
the mean error of one observation being 2.867 °/.. 
