VI 
Contents . 
PAGE 
NOTICE OF BOOK. 
Ueber den Ban und die Verrichtungen der Leitungsbahnen in den 
Pflanzen y von E. Strasburger 217 
No. XXIII. 
Schunck, E. — The Chemistry of Chlorophyll, II . . . .231 
Darwin, F., and Pertz, Dorothea F. M.— On the Artificial Pro- 
duction of Rhythm in Plants. (With six Woodcuts) . . 245 
Farmer, J. B — On the Embryogeny of Angiopteris evecta, Hoffm. 
(With Plate XV) 265 
Ewart, M. F. — On the Staminal Hairs of Thesium. (With Plate 
XVI) 271 
Stapf, O. — On the Sonerileae of Asia. (With Map, Plate XVII) . 291 
Rolfe, R. A. — On Habenari-orchis viridi-maculata, Rolfe, hyb. nat. 
(With Plate XVIII) 325 
No. XXIV. 
Barber, C. A. — Nematophycus Storriei, nov. sp. (With Plates XIX 
and XX) 329 
Davis, B. M. — Development of the Frond of Champia parvula, Harv. 
from the Carpospore. (With Plate XXI) .... 339 
Goebel, K. — On the Simplest Form of Moss. (With Plate XXII) . 355 
Johnson, T. — Stenogramme interrupta, (C. Ag.) Montg. (With 
Plate XXIII) 361 
Hemsley, W. B. — A Drift-seed (Ipomoea tuberosa, L.). (With Plate 
XXIV) 369 
NOTES. 
Errera, L. — On the Cause of Physiological Action at a Distance . 373 
Groom, Percy. — Botanical Notes : 
No. 1. On the Thorns of Randia dumetorum, Lam. (With four 
Woodcuts). -375 
No. 2. On a monstrous Flower of Nelumbium speciosum, Wild. . 380 
No. 3. On the Embryo of Petrosavia. (With Woodcut) . . 380 
Willis, J. C. — The Distribution of the Seed in Claytonia. (With 
Woodcut) 382 
