CONTENTS. 
PAGE 
Ferguson, Miss M. C. — The Development of the Pollen-tube and 
the Division of the Generative Nucleus in certain 
Species of Pines. With Plates XII, XIII, and XIV . 
Bower, F. O. — Imperfect Sporangia in certain Pteridophytes. Are 
they vestigial ? . 
Trow, A. H. — Observations on the Biology and Cytology of Pythium 
ultimum, n. sp. With Plates XV and XVI . 
Massee, G., and Salmon, E. S. — Researches on Coprophilous Fungi. 
With Plates XVII and XVIII 
Boodle, L. A. — Comparative Anatomy of the Hymenophyllaceae, 
Schizaeaceae and Gleicheniaceae. II. On the Anatomy 
of the Schizaeaceae. With Plates XIX, XX, and XXI . 
Thiselton-Dyer, Sir W. T.— Morphological Notes. With Plate 
XXII 
NOTES. 
Waller, A. D. — An Attempt to estimate the Vitality of Seeds by an 
Electrical Method 
Farmer, J. B. — The Ouadripolar Spindle in the Spore-mother-cell 
of Pellia epiphylla 431 
Giesenhagen, K., and Gwynne-Vaughan, D. T. — Loxsoma 
Cunninghamii — a Correction 433 
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