1923:
Floericke, Kurt
"Falterleben" (1923) Stuttgart, Franckh'sche Verlagsbuchhandlung
Number of scanned pages: 84
(Insekten; Schmetterlinge)
Language: German, Created: 2005-04-21
Small booklet with an introduction to butterflies.
[Mirror MPIPZ] [Mirror ZUM]
pdf-File: Complete book (Medium resolution) (29.49 MBytes)

Haeckel, Ernst
"Berg- und Seefahrten" (1923)
Number of scanned pages: 138
(Reisebericht)
Language: German, Created: 2003-06-22
[Mirror MPIPZ]
pdf-File: Complete book (Medium resolution) (55.33 MBytes)

Haeckel, Ernst
"Die Lebenswunder" (1923) Leipzig
Number of scanned pages: 392
(Evolution)
Language: German, Created: 2004-03-01
[Mirror MPIPZ]
pdf-File: Complete book (Medium resolution) (163.60 MBytes)

Lindau, Gustav
"Die Flechten" (1923)
Number of scanned pages: 295
(Botanik; Flechten; Systematik)
Language: German, Created: 2003-04-07
[Mirror MPIPZ] [Mirror ZUM]
pdf-File: Lindau - Flechten (16.74 MBytes)

West, William; West, George Stephen; Carter, Nellie
"A monograph of the British Desmidiaceae, Vol. V" (1923) Cambridge
Number of scanned pages: 407
(Botanik; Systematik)
Language: English, Created: 2004-06-01
[Mirror MPIPZ] [Mirror ZUM]