Image from the Biodiversity Heritage Library.
Contributed by Harvard University Botany Libraries.
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Transcription
No. 1748 17a Loc. unknown
Marine diatoms
No. 1749 17b Locality unknown-
Marine Diatoms
No. 1750 18a Loc. unknown.
48 1/2 Nitschia fig 37 in ring
78 1/4
45 1/4 " another species
30 1/4
55 1/9 Top view of a Polymorph.
77 1/4