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Record
Cofnod / Record
CP48 - Photographs: Centre for Environment, Fisheries & Aquaculture Science, Conwy.
4 - SERIES of Lantern Slides
Cyfernod / Ref No
CP48/4/14
Teitl / Title
Cover over E tank to control photosynthesis and prevent excessive alkalinity of the water.
Dyddiad / Date
1930 Jan
Graddau / Extent
1 slide
Lefel / Level
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