Astronomy

JANSSEN, PIERRE JULES CÉSAR - THE DISCOVERY OF HELIUM IN THE SUN.

Paris, G. Masson, 1878.

HERSCHEL, JOHN W.F. - INTRODUCING 'POSITIVE' AND 'NEGATIVE' IN PHOTOGRAPHY.

(London, Richard and John E., Taylor, 1840.

DARWIN, G.H. - A PIONEERING WORK IN COSMOLOGY BY THE "FATHER OF GEOPHYSICS"

(London, Harrison and Sons, 1880).

DARWIN, G.H. - ANNOUNCING THE "RESONANCE THEORY" OF THE ORIGIN OF THE MOON.

(London, Harrison and Sons, 1880).

IVORY, JAMES.

(London, Richard Taylor, 1833).

BARLOW, PETER. - THE "BARLOW LENS"

(London, Richard Taylor, 1833).

DARWIN, G.H.

(London, Harrison and Sons, 1881).

LANGDON, S.

London, H. Milford, 1935.

EDDINGTON, SIR ARTHUR.

Cambridge, Univeristy Press, 1935.

SCHMIDT, M.

London, Macmillan & Co., 1963.

SCHMIDT, M.

(London, Macmillan & Co., 1963).

LUYTEN, W.J. (EDT.).

Dordrecht, 1971.

HOWARD, ROBERT.

Dordrecht, 1971.

SHAKESHAFT, JOHN R. (EDT.).

Dordrecht, 1974.

HAYLI, AVRAM (EDT.).

Dordrecht, 1975.

LE GRAND, ANTOINE.

Nürnberg, Joh. Ziegeri, 1711 et 1702.

BAUSCHINGER, JULIUS.

Leipzig, Wilhelm Engelmann, 1906.

HORREBOW, CHRISTIAN.

Kjøbenhavn, Høpffner, (1750).