O. A. Johannsen
O. A. Johannsen
Bookitis has not yet captured a biography for this author, but the catalog links below show the books currently associated with this profile.
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Featured books
Representative editions for works actually authored by this person.
- Image source: Open LibraryAD
Aquatic diptera
cover - Image source: Open LibraryEO
Embryology of insects and myriapods
cover - Image source: Open LibraryGO
Genera of plancton organisms of the Cayuga lake basin
cover - Image source: Open LibraryPF
Potato flea-beetle (Epitrix cucumeris)
cover - Image source: Open LibrarySB
Spruce bud worm and spruce leaf miners
cover - Image source: Open LibraryIN
Insect notes for 1912
cover - Image source: Open LibraryTF
The fungus gnats of North America, part IV
cover - Image source: Open LibraryGT
Guide to the insects of Connecticut
cover - Image source: Open LibraryTF
The fungus gnats of North America, part III
cover - Image source: Open LibraryIN
Insect notes for 1910
cover - Image source: Open LibraryIN
Insect notes for 1911
cover - Image source: Open LibraryHT
Histological technique
cover - Image source: Open LibraryAT
Apple tree insects of Maine
cover - Image source: Open LibraryIN
Insect notes for 1909
cover - Image source: Open LibraryTF
The fungus gnats of North America, part II
cover - Image source: Open LibraryTF
The fungus gnats of North America, part I
cover - MEMedical entomologyO. A. Johannsen
Medical entomology
no cover
Works in catalog
Quick navigation into the work-level grouping pages behind the featured books.
- Open Work
Aquatic diptera
- Open Work
Embryology of insects and myriapods
- Open Work
Genera of plancton organisms of the Cayuga lake basin
- Open Work
Potato flea-beetle (Epitrix cucumeris)
- Open Work
Spruce bud worm and spruce leaf miners
- Open Work
Insect notes for 1912
- Open Work
The fungus gnats of North America, part IV
- Open Work
Guide to the insects of Connecticut
- Open Work
The fungus gnats of North America, part III
- Open Work
Insect notes for 1910
- Open Work
Insect notes for 1911
- Open Work
Histological technique
- Open Work
Apple tree insects of Maine
- Open Work
Insect notes for 1909
- Open Work
The fungus gnats of North America, part II
- Open Work
The fungus gnats of North America, part I
- Open Work
Medical entomology