Geikie, Archibald

3

Baker, S.W.

2

Delacour, Jean

2

Harmer, S.F.

2

Mayr, Ernst

2

Audubon, John James (1785-1851)

1

Bailey, L.H.

1

Balfour, F.M.

1

Barker Jørgensen, C.

1

Bartholomew, George A.

1

Blagden, C.O.

1

Blanford, W.T.

1

Bridge, T.W.

1

Chanler, W.A.

1

Cooke, M.C.

1

Coues, E.

1

Crundall Punnett, Reginald

1

Cunningham, J.T.

1

Dunn, L.C.

1

Gibson, G.A.

1

Gillen, F.J.

1

Gordon, Malcolm S.

1

Grinnel, Alan D.

1

Hedin, S.

1

Herdman, W.A.

1

Kingsley, Charles

1

Kingsley, M.H.

1

Kirke Swann, H.

1

Landor, A.H.S.

1

Leslie, Alexandre

1

Lorentz, Hendrik A.

1

Lumholtz, C.

1

Mahaffy, J.P.

1

Miall, L.C.

1

Morgan, T.H.

1

Mullens, W.H.

1

Nordenskiöld, A.E. Freih. von

1

Ray Lankester, E.

1

Shipley, A.E.

1

Shufeldt, R.W.

1

Silberstein, L.

1

Skeat, W.W.

1

Spencer, B.

1

Stewart, B.

1

Thompson, S.P.

1

Thomson, William

1

Thomson, William Baron Kelvin of Largs

1

Throp., Jack L.

1

Trivelli, A.P.H.

1

Vismes Kane, W.F. de

1

Vogt, William

1

Wallace, A.R.

1

Wallace, Alfred Russel

1

Wilson, Daniel

1

boek

42

ornithologie

3

reizen: Nijl

2

vogels

2

biologie

1

dier: vogel

1

embryologie

1

geobiologie

1

geologie

1

Maleisië [vogels]

1

reizen: Abyssinië [Ethiopië]

1

vogel

1

zoölogie

1

1982

1

1978

1

1951

1

1947

1

1946

2

1927

1

1919

1

1917

2

1910

2

1906

1

1905

1

1904

2

1903

2

1902

1

1900

1

1897

3

1896

2

1895

2

1890

3

1889

1

1885

3

1881

1

1876

1

1872

1

1871

1

1870

1

1869

1

1867

1

1866

1

1862

1