crescographn.
/ˈkrɛskəɡrɑːf//ˈkrɛskəɡraf/ An instrument invented by Sir Jagadis Chunder Bose (1858–1937), Indian plant physiologist, for recording the rate of growth in plants.
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crescograph1918
1918 J. C. Bose Life Movements in Plants I. 157 High Magnification Crescograph.
1918 J. C. Bose Life Movements in Plants I. 169 Magnetic Crescograph.
1919 J. C. Bose Life Movements in Plants II. 255 Balanced Crescograph.
1919 J. C. Bose in Proc. Royal Soc. B. 90 365 (heading) Researches on growth and movement in plants by means of the high magnification crescograph.
1957 Encycl. Brit. III. 926/1 He [sc. Bose]..invented many delicate and sensitive instruments, such as his crescograph for recording plant growth, magnifying a small movement as much as 10,000,000 times.
This entry has not yet been fully updated (first published 1933; most recently modified version published online June 2018).
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