Zoology

NORDSTRÖM, FRITHIOF OCH EINAR WAHLGREN.

Stockholm, (1941).

EDLEN VON MOJSVAR, AUGUST M.

Paris, Octave Doin, 1881.

SCHWARZNECKER, G.

Berlin, Wiegandt, 1879.

HOME, EVERARD. - THE TUSKS OF THE NARWHALE.

(London, W. Bulmer and Co., 1813).

WALTER, EMIL.

CHRISTIANSØ -

KRAMP, P.L.

Copenhagen, 1965.

STEPHENSEN, K.

Kjøbenhavn, Reitzel, 1917.

BRÜNING, CHRISTIAN (HRSG.).

Braunschweig, Wenzel & Sohn, (1913).

HANCOCK, ALBANY.

(London, Richard Taylor and William Francis, 1859)

DAHL, E., S. DANIELSSEN ET AL. (EDTS.).

Arendal, 1984.

STITZ, H.

KIEFFER, J.J.

CARPENTER, WILLIAM B.

(London, Taylor and Francis, 1866).

OWEN, RICHARD.

(London, Richard Taylor, 1834)

ANONYMOUS.

Leipzig, J.J. Weber, 1848.

FARADAY, MICHAEL. - ANIMAL ELECTRICITY.

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

DAVY, JOHN. - ANIMAL ELECTRICITY.

(London, Richard Taylor, 1834)