Hibbertia dentata (Dilleniaceæ), placed in the hothouse, followed the sun, and made (May 18th) a circle in 7 hrs. 20 m.; on the 19th, reversed its course, and moved against the sun, and made a circle in 7 hrs.; on the 20th, moved against the sun one-third of a circle, and then stood still; on the 26th, followed the sun for two-thirds of a circle, and then returned to its starting-point, taking for this double course 11 hrs. 46 m.

Sollya Drummondii (Pittosporaceæ) moves against the sun kept in greenhouse.

H. M.
April 4, 1st circle was made in 4 25
5, 2nd 8 0 (very cold day)
6, 3rd 6 25
7, 4th 7 5

Polygonum dumetorum (Polygonaceæ). This case is taken from Dutrochet (p. 299), as I observed, no allied plant: follows the sun. Three shoots, cut off a plant, and placed in water made circles in 3 hrs. 10 m., 5 hrs. 20 m., and 7 hrs. 15 m.

Wistaria Chinensis (Leguminosæ), in greenhouse, moves against the sun.

H. M.
May 13, 1st circle was made in 3 5
13, 2nd 3 20
16, 3rd 2 5
24, 4th 3 21
25, 5th 2 37
25, 6th 2 35

Phaseolus vulgaris (Leguminosæ), in greenhouse, moves against the sun.

H. M.
May, 1st circle was made in 2 0
2nd 1 55
3rd 1 55

Dipladenia urophylla (Apocynaceæ) moves against the sun.

H. M.
April 18, 1st circle was made in 8 0
19, 2nd 9 15
30, 3rd 9 40