on
(
а
-period of four years, the ground that the magnete
variation at this station
·
undergoes so
little
change
as
to
from year to year
make continuous observation
unnecess
2.
cesse
Before acquieseing i
in
this proposition I would be obliged by Your Lordship favouring me with an expression of opinion from the Astronomer Royal and the New Committee of the
Royal
376
Royal Essiety as to whether - observations for four
consecutive
years- made to alternate with intervening periods of four
years
without observations-will.
be likely to so
to so im
impair
the
value of the dables, as to _ "render" it greatly preferable
that the records should be
continuous.
3.
may mention that as both Mr Christie and the New Committee are regularly supplied with the Hongkong
Magnetis