Geology

FORCHHAMMER, G.

(København, 1825).

WEISBACH, ALBIN.

Leipzig, 1900.

BØGGILD, O.B.

Kjøbenhavn, Reitzel, 1905.

FORCHHAMMER, G.

(København, 1826, 1828, 1832).

JAKOBSEN, BØRGE.

Kbh., 1964.

BRINKMANN, ROLAND.

Stuttgart, 1959-61.

ROUGEMONT, FRIEDRICH VON.

Stuttgart, R. Besser, 1856.

PUGGAARD, CHRISTOPHER.

Bern, C.A. Jenni, 1851.

WOOD, W. - ILLUSTRATED BY WILLIAM DANIELL WITH 50 ADDITIONAL PLATES.

London, Cadell and Davies, 1897.

HUMBOLDT, ALEXANDER von.

Leipzig, Johann Ambrosius Barth, 1837-38.

PACKARD, ALPHEUS SPRING.

New York, Hodges, 1891.

DARWIN, CHARLES.

(London, Richard and John E. Taylor, 1839).

HEER, OSWALD.

Stockholm, Nordstedt & Söner, 1870.

BERTRAND, E.

A la Haye, Pierre Grosse & Daniel Pinet, 1763.

JOHNSTRUP, F.

Kbhvn., 1882.

STAHL, ALFRED u. ARTUR EBERT.

Bremen-Horn, 1952.

FORBES, CHARLES S.

London, John Murray, 1860.

WEIDICK, ANKER.

Copenhagen, 1968.