Geology

MIKKELSEN, VALDEMAR M.

Copenhagen, 1949.

LUCIUS, M.

Luxemburg, 1937.

FORBES, CHARLES S.

London, John Murray, 1860.

WEIDICK, ANKER.

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FLINT, RICHARD FOSTER.

N.Y., London, (1948).

SAUNDERS, ROBERT.

Berlin, Vossischen Buchhandlung, 1790.

LULL, RAIMUNDUS & ALBERTUS MAGNUS.

(Argentorati (Strassbourg) apud Balthassarum Beck), 1541.

PLAYFAIR, JOHN. - ON THE SCHEHALLIEN MOUNTAIN.

(London, Bulwer and Co., 1811).

NAUMANN, CARL FRIEDRICH.

Leipzig, Wilhelm Engelmann, 1871.

BARBA, ALBARO (ALVARO) ALONSO.

Franckfurt am Mayn, Johann Friedrich Fleischer, 1739.

PRESTWICH, JOSEPH.

(London, Harrison and Sons, 1893).

STENO (STENONIS STENSEN), NICOLAI (NIELS).

Hafniae, 1952.

HOFFMANN, FRIEDRICH. - "THE GEOLOGY OF ROME"

(Leipzig, Johann Ambrosius Barth, 1829).

EINSTEIN, ALBERT (+) NIELS BOHR.

Berlin, Julius Springer, 1926.

CURIE, P. (PIERRE) et A. DEBIERNE. - MEASURING ABSOLUTE TIME FOR THE FIRST TIME

(Paris, Gauthier-Villars), 1901.

SCORESBY, WILLIAM.

(Paris, Crochard, 1817).

RICHTHOFEN, FERDINAND von.

Berlin, Robert Oppenheim, 1886.

DARWIN, CHARLES.

London, University of London, 1842.