Germination stages on aqua fortis


The germination stages of a sunflower (helianthus) and a bean (vicia) on aqua fortis (5% formaldehyde) in plastic containers. They were prepared by griffin biological laboratories ltd, tonbridge, england. These preparations were mainly used for educational purposes in schools. Second quarter of the 20th c. 26 x 16(11) x 4.5cm.

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