Astronomy

HERSCHEL, WILLIAM.

(London, W. Bulmer and Co., 1815).

RAMUS, C.

Kjøbenhavn, Reitzel, 1857.

(MARCET, JANE).

London, Longman, Rees, Orme.., 1833.

KEPLER, JOHANNES.

München, Beck, 1939.

HUGGINS, WILLIAM.

(London, Taylor and Francis, 1866).

KRUDY, EUGEN von.

Leipzig, Barth, 1930.

WOLFF, CHRISTIAN. - C.F. MOLBECHS EKSEMPLAR.

Frankfurt und Leipzig, Rengerschen Buchh., 1750.

WALCH, ALBRECHT GEORG.

Göttingen, J.C. Dietrich, 1794.

FRANCOEUR, L.B.

Paris, Libr. pour les Sciences, 1830.

FRIIS, F.R.

Kjøbenhavn, Gyldendal, 1871.

WIENER, CHR.

Halle, Engelmann, 1907.

BEGLINGER, JOHANNES.

Zürich, Meyer & Zeller, 1885.

PRITCHETT, W. KENDRICK.

Berkeley & Los Angeles, Univ. of California Press, 1963.

BUGGE, THOMAS.

Kbhvn., 1796.

BALL, ROBERT STAWELL.

Dublin, Hodges, Foster, and Co., 1876.

BUGGE, THOMAS.

Kiøbenhavn, S. Poulsen, 1796.

UREY, HAROLD C.

London, Oxford University Press, 1952.

ZINNER, ERNST.

Berlin, Julius Springer, (1931).