539 
Secondly there follow the results from all latitude determinations 
first from those at Jidda, subsequently from those at Mecca. In these 
tables have been collected the results from “Telescope left’ and 
“Telescope right” for the north star and for the south. star; the 
values given are the mean results of the pointings on the two threads. 
On Dec. 1 and Febr. 21 no zenithpoint had been determined. 
For Dec. 1 we have used 9’9".4 and 14’43'.5 and for Febr. 21 the 
mean of the results of Febr. 20 and 22. For Nov. 23 too a mean 
has been employed of that date itself and of Nov. 25, 28 and 30. 
On Nov. 25 and on Febr. 21 one star had not been observed in 
the two positions of the telescope. 
For the few days on which the observations were not complete, 
we have in order to deduce mean results employed the systematic 
differences found hereafter. (See the table on p. 538). 
RESULTS OF THE DETERMINATIONS OF LATITUDE AT MECC4. 
| North Star | South Star 
| Ere LD A aie ah North+South 
| | 2 
T. L.~| T. R. | Mean || T.L. | T. R. | Mean | 
1911 | gieg5' | 21925! | 21 | 21925-21025 | 21e. || ate 
Bebri loi Sarp2N5 115 | 25'16"5 3'9 OUP ek 2a POE 2551618 
| | 
Sel Ks | 2509 25 1 25 5 12.6 34 1 23 .4 | 24 4 
Ee EN Pe) Nes || 2167 fh Gl A EL Cl TAS 
ann | uM: aaa DE a aaa a 
sat [2608 | 24.4 | 25E 20.0'-| 10.4 £2 || 202 
Marcil ea hes dj 379 || 36.8 | 27.2 ||. 32.0 | 35.0 
> 12. > | 27.8 | 135 | 20-6) |b, 22.8 
> 14/>| 216 | 83 | 149] 29 | 413 | 35.1]) 25.0 
stes 29 | 167 | 198 || 144 | ars | 26.1 | 23.0 
en glee |", te, | 20.4 |< -23.2 
| | | 
(To be continued). 
