[61.1]

[Letter not transcribed]

[61.2]

[Letter not transcribed]

[61.2v]

(a) text p. 226

The rapid gyrating movements of the little lateral leaflets of Desmodium seen to be same phenomenon belong to the same class of movements, somewhat exaggerated in rapidity & amplitude. The jerking movements, with a slight advance & still slighter retreat, apparently not exactly in the same lines, of the hypocotyl of the cabbage, of the leaves of Dionæa & the short like cotyledon of Phalaris, as seen under the microscope, all probably came under the same class head. of movements. We may suspect that we here see energy from rapid & incessant chemical changes in rapid progress in the tissues, connected converted into movement motion.

[Movement in plants, p. 406: "The rapid gyrations of the little lateral leaflets of Desmodium belong to the same class of movements, somewhat exaggerated in rapidity and amplitude. The jerking movements, with a small advance and still smaller retreat, apparently not exactly in the same line, of the hypocotyl of the cabbage and of the leaves of Dionaea, as seen under the microscope, all probably come under this same head. We may suspect that we here see the energy which is freed during the incessant chemical changes in progress in the tissues, converted into motion."]

(b) text p. 556

It may be premised that as a general rule all the species of the same genus sleep in nearly the same manner. But there are some exceptions to this rule ; for in large genera, for instance oxalis, including many sleeping species for instance Oxalis, some do not sleep. One species of Melilotus sleeps like a Trifolium & therefore very differently from its congeners. In with the species of Sida the leaves either rise or fall at night, & in with Lupinus they sleep in three different methods. Turning Returning to the list

[Movement in plants, pp. 408-9: "It may be premised that, as a general rule, all the species in the same genus sleep in nearly the same manner. But there are some exceptions; in several large genera including many sleeping species (for instance, Oxalis), some do not sleep. One species of Melilotus sleeps like a Trifolium, and therefore very differently from its congeners; so does one species of Cassia. In the genus Sida, the leaves either rise or fall at night; and with Lupinus they sleep in three different methods. Returning to the list, the first point which strikes us, is that there are many more genera amongst the Leguminosae (and in almost every one of the Leguminous tribes) than in all the other families put together; and we are tempted to connect this fact with the great mobility of the stems and leaves in this family, as shown by the large number of climbing species which it contains."]