Note * — Chapter IV · THE EFFECTS OF HEAT ON THE LEAVES.
Reading edition
Sachs states (‘Traité de Botanique,’ 1874, p. 855) that the movements of the protoplasm in the hairs of a Cucurbita ceased after they were exposed for 1 m. in water to a temperature of 47° to 48° Cent., or 117° to 119° Fahr. [page 71]