Thryallis brachystachys (Malpighiaceæ) moves against the sun: one shoot made a circle in 12 hrs., and another in 10 hrs. 30 m.; but the next day, which was much colder, the first shoot took 10 hrs. to perform only a semicircle. 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 _Dipladenia crassinoda_ moves against the sun. H. M. May 16, 1st circle was made in 9 5 July 20, 2nd 8 0 21, 3rd 8 5 _Ceropegia Gardnerii_ (Asclepiadaceæ) moves against the sun. H. M. Shoot very young, 2 inches in 1st circle was 7 55 length performed in Shoot still young 2nd 7 0 Long shoot 3rd 6 33 Long shoot 4th 5 15 Long shoot 5th 6 45