| Description | Various photographs, which may have previously been identified with correspondence and manuscripts, retained as far as possible in their acquired groups as follows:-
Eidal gullies taken from 200 metres above, in the wadden region, sent to Ross; Museum Polaroids and other photographic material depicting Rutilaria amplectans, Allen's Farm, Oamara, dated 1968; Six envelopes of various slide images of diatom specimens, dated c2004. Slide specimen photographs of Navicula mounted on cards, with correspondence from the Central Metallurgical Laboratory, 1952; A4 size photograph print of a diatom specimen; Photograph print depicting a Thalassiosira specimen; Various slide photographs depicting various phytoplankton, and diatoms, including: Cerataulina pelagica, Navicula, etc; Index cards with mounted specimen photographs of Navicula (c1952); and a group of pen and ink specimen drawings for print publication. 1 oversize file of x20 Plate sheets of original pen and ink drawings of diatom specimens, arranged, instructed, and labelled on verso in preparation for print/ publication
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