467 
Taking into consideration that the 2ed result has less weight, the 
mutual agreement may be considered satisfactory. Wheu we give 
the 2nd result a weight of 0.5, the mean result becomes 
— 48M29S9 
while formerly from the observation of altitudes of the moon 
— 49m3283 + 150. 
was found. 
Probably in a final calculation, as the correction of the mean 
longitude of the moon for the mean epoch of my observations was 
about -+ 05.47, a somewhat greater eastern geographical longitude 
will be found, and the new result, even from these seven stars 
alone, will come somewhat nearer to the earlier one. 
In the years 1911 and 1912 I was obliged to restrict myself to 
the absolntely necessary time determinations. My supply of chrono- 
meters was in the mean time augmented in August 1909 by one 
from Dent, which was regulated to sidereal time, and as both my 
other chronometers by Hnwirr and Honwt began to shown signs of 
old age, I ordered in 1910 another chronometer from A. DE CASSERES 
in Amsterdam, which I received in February 1914. This chrono- 
meter pe ©. 769 had shown a very regular rate in a six months 
test by Mr. ROosENBURG at the Amsterdam branch of the Dutch 
Meteor. Institute. It preserved this quality in Africa, so that I 
was able to use it as a standard instrument. -This was of value 
to me, not only for the accuracy of my observations, but also 
because in connection with the official introduction on Jan. 1st 1912 
of the time of the 15" meridian east of Greenwich (— Middle 
Eurepean time) I was requested by the Portuguese Government to 
determine the time, and to distribute it telegraphically or telephoni- 
cally in the district, for which purpose my Horwü chronometer 
was deposited at Cabinda, the capital of the district. 
My hope of being able in these years to carry out my long 
cherished plan of making determinations of geographical position for 
one or two points on the Lukula river, unfortunately came to nothing, 
but a more favourable time began again for my observations after 
I definitely changed my place of residence from Chiloango te Matuba, 
in 1913. In the following year I was able to make a determination 
of the geographical coordinates of my new domicile and also of 
the capital Cabinda. 
This was the last of my observations with the old Universal 
30* 
