THE OBSERVATORY,

A

MONTHLY REVIEW OF ASTRONOMY.

EDITED BY

H. H. TURNER, M.A., B.Sc., F.R.S., SEC. R.A.S.,
SAVILIAN PROFESSOR,

T. LEWIS, F.R.A.S.,

H. P. HOLLIS, B.A., F.R.A.S.

VOL. XX.

LONDON:

TAYLOR AND FRANCIS, RED LION COURT, FLEET STREET.