Page 466 - 89 history of astronomy_opt

various velocities, up to forty kilometres a
second. These movements seem to have def-
inite relation to any sun-spots in the neigh-
bourhood. From the results already ob-
tained it seems certain that, if this method
of observation be continued, it cannot fail
to supply facts of the greatest importance.
It is quite impossible to do justice here
to the work of all those who are engaged on
466