This was succeeded by six days of dark, stormy weather, which entirely
interrupted all progress, and terminated by a rain, with a change to a
milder temperature, which cleared away the snow. During this untoward
event the parties made themselves as comfortable as practicable in their
tents, and were occupied in computing many of the astronomical and other
observations previously made.
On the 2d of November the weather became clear, and the necessary
astronomical observations were immediately commenced at Parks Hill.
From this elevated point the first station could be distinctly seen by
means of small heliotropes during the day and bright lights erected upon
it at night. Its direction, with that of several intermediate stations
due south of Parks Hill, was verified by a new series of transit
observations upon high and low stars, both north and south of the
zenith. By the same means the line was prolonged to the north.
In one week after commencing the observations at Parks Hill the weather
became again unfavorable.
Pages:
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918