H. M. July, 7, 1st circle was made in 3 10 7, 2nd 2 38 8, 3rd 3 5 8, 4th 2 56 8, 5th 2 30 8, 6th 2 30 _Lapagerea rosea_ (Philesiaceæ), in greenhouse, follows the sun. H. M. March 9, 1st circle was made in 26 15 (shoot young) 10, semicircle 8 15 11, 2nd circle 11 0 12, 3rd 15 30 13, 4th 14 15 16, 5th 8 40 when placed in the hothouse; but the next day the shoot remained stationary. _Roxburghia viridiflora_ (Roxburghiaceæ) moves against the sun; it completed a circle in about 24 hours. (DICOTYLEDONS.) _Humulus Lupulus_ (Urticaceæ) follows the sun. The plant was kept in a room during warm weather. H. M. April 9, 2 circles were made in 4 16 Aug. 13, 3rd circle was 2 0 14, 4th 2 20 14, 5th 2 16 14, 6th 2 2 14, 7th 2 0 14, 8th 2 4 With the Hop a semicircle was performed, in travelling from the light, in 1 hr. 33 m.; in travelling to the light, in 1 hr. 13 m.; difference of rate, 20 m. _Akebia quinata_ (Lardizabalaceæ), placed in hothouse, moves against the sun. H. M. March 17, 1st circle was made in 4 0 (shoot young) 18, 2nd 1 40 18, 3rd 1 30 19, 4th 1 45 _Stauntonia latifolia_ (Lardizabalaceæ), placed in hothouse, moves against the sun. H. M. March 28, 1st circle was made in 3 30 29, 2nd 3 45 _Sphærostemma marmoratum_ (Schizandraceæ) follows the sun. H. M. August 5th, 1st circle was made in about 24 0 5th, 2nd circle was made in 18 30 _Stephania rotunda_ (Menispermaceæ) moves against the sun. H. M. May 27, 1st circle was made in 5 5 30, 2nd 7 6 June 2, 3rd 5 15 3, 4th 6 28