A laboratory course in plant physiology, especially as a basis for ecology; . For this experiment burettes specially made, 16 mm. external diame-ter, graduated to 50 cc., with 2 cm. of tube above and below the gradua-.

- Image ID: 2AXJMBP
A laboratory course in plant physiology, especially as a basis for ecology; . For this experiment burettes specially made, 16 mm. external diame-ter, graduated to 50 cc., with 2 cm. of tube above and below the gradua-.
The Reading Room / Alamy Stock Photo
Image ID: 2AXJMBP

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