268 I. Р. Kocu. 
Estimate by second pair of observations 
Telesc. left.... 360° = 282389 — 77211 
Telesc might... ee... 7729 
Mean 77.220 
Level + 0.7 
Refr. + 4.5 
рт + 157 
д + 18 47.6 
[0 96°30'.5 
ф = 180° — (z +0) = 83°29'.5 
As the clock correction is known, the proceeding at the com- 
putation of the time of culmination becomes the ordinary one: 
Apparent times rene nee 12500™00s 
Equatronko timer re er +3 49 
GockicorrechHon ze 2. 2%... 26-1080) 
Clock time of the culmination.. 13h19m41s 
Clock time 12h08m05s 12h14m48s 128201153 
Е Il = = 
Read 2e. er aoe | 7122175127 11221 09% | TI 2151“ 
Bevel spa Kern | + 414 + 44 | + 3 
Ref ES Ay) ie 445 | + 445 + 445 
DATE RTE Ter ee NN ee DES 
Geocentric 2..... | 174259 | 114310 | 774301 
Reduction to the || , ВИ ar 12 
meridian JE ' 
иона, MN .... | +18 4730 | +18 4734 | +18 4737 
= == — || — -—- ———$ ———— = = = Sem men 
LE NO NE RENE | 96 30 34 96 3045 95 30 50 
DER ME 83 29 26 83 2915 83 2910 
| 
ф = 83°2917". 
The mean error may Бе estimated at about ten seconds. 
If the local correction of the watch had not been known, one 
would from the series of observations have got the clock time of 
culmination 12157295, from which one would in return have got three 
closely agreeing values of o, i. e. 83729'17”. 
Further I am going to give an example of a determination of 
latitude by the sun, performed with special care and under favourable 
conditions, and which consequently may be considered an expression 
of the greatest accuracy, which in observations of the sun may be 
obtained by means of the small universal instrument. 
