24 TWINING PLANTS. Cuap. I. 
all parts of the series so as to show that all kinds 
behave in a nearly uniform manner.* 
The Rate of Revolution of various Twining Plants. 
(ACOTYLEDONS.) 
Lygodium scandens (Polypodiacez) moves against the sun. 
A. OM. 
June 18, Ist circle was made in . 6 0 
» 18,2nd , 4 ys 6 15 (late in evening) 
» 19,8rd_,, 4s + 5 82 (very hot day) 
” 19, 4th ” ” ” 5 0 (very hot day) 
» 20,5th 5 5» oo» 6 0 
Lygodium articulatum moves against the sun. 
H. M. 
July 19, 1st circle was made in . 16 80 (shoot very young) 
” 20, 2nd a »” ” * 15 0 
” 21, ord ” » ” ¢ 8 0 
ee 22, 4th » ” 2”? . 10 30 
(MonocoTyLEDons.) 
Ruscus androgynus (Liliacez), placed in the hot-house, moves 
against the sun. 
H. M. . 
May 24, 1st circle was made in 6 14 (shoot very young) 
yp 20, 2H gg we 2 21 
» 25,8rd 4, 4, 53 3 387 
» 20,4th 4, 5 5 3 22 
a 26,5th. 35 ge 2 50 
39 21, OER gays 3 52 
» 7,7th  ,, 4 i 411 
* I am much indebted to Dr. of climbing plants. Professor Asa 
Hooker for having sent me many 
plants from Kew; and to Mr. 
Veitch, of the Royal Exotic Nur- 
sery, for having generously given 
me a collection of fine specimens 
Gray, Prof. Oliver, and Dr. Hooker 
have afforded me, as on many 
previous occasions, much infor- 
mation and many references, 
