VI 
Contents. 
PAGE 
No. XXXV, September, 1895. 
True, R. H. — On the Influence of Sudden Changes of Turgor and of 
Temperature on Growth . . . . . . .365 
Dixon, H. H. and Joly, J. — The Path of the Transpiration-current. 
(With Woodcuts 2-8) , . . . . . . . 403 
Massee, G. — The ‘ Spot ’ Disease of Orchids. (With Plate XV) . 421 
Moore, J. E. S. — On the Essential Similarity of the Process of Chromo- 
some Reduction in Animals and Plants . . . .431 
Beard, J. — On the Phenomena of Reproduction in Animals and Plants 
(Antithetic Alternation of Generations) . . . .441 
Beard, J. and Murray, J. A. — On the Phenomena of Reproduction 
in Animals and Plants (Reducing Division in Metazoan Re- 
production) .......... 448 
Beard, J. — On the Phenomena of Reproduction in Animals and Plants 
(the Conjugation of the Infusoria). (With Woodcuts 9-13) . 456 
Farmer, J. B. — On Spore-formation and Nuclear Division in the 
Hepaticae. (With Plates XVI, XVII, and XVIII) . . 469 
NOTE. 
Williamson, W. C. and Scott, D. H. — On Lyginodendron and 
Heterangium 525 
No. XXXVI, December, 1895. 
Jeffrey, E. C. — Polyembryony in Erythronium americanum. (With 
Plate XIX) 537 
O’Brien, M. — The Proteids of Wheat (II) 543 
Hansen, E. C. — Experimental Studies on the Variation of Yeast-cells 549 
Humphrey, J. E. — On some Constituents of the Cell. (With Plate 
XX) 561 
Church, A. H. — The Structure of the Thallus of Neomeris dumetosa, 
Lamour. (With Plates XXI, XXII, and XXIII) . . .581 
Trow, A. H. — The Karyology of Saprolegnia. (With Plates XXIV 
and XXV) 609 
NOTES. 
Ward, H. M. — The Formation of Bacterial Colonies . . • 653 
A false Bacterium 657 
Solms-Laubach, H. Graf zu. — On a New Form of Fructification in 
Sphenophylleae 658 
Wager, H. — Preliminary Note upon the Structure of Bacterial Cells . 659 
Seward, A. C. — The Wealden Flora. ...... 661 
Dixon, H. H. — The Nuclei of Lilium longiflorum .... 663 
Abnormal Nuclei in the Endosperm of Fritillaria 
imperialis 665 
Farmer, J. B. — On Spore-formation in Fegatella conica . . . 666 
