ANNALS OF BOTANY, Vol. XIII. 
No. XLIX, March, 1899, contains the following Papers and Notes: — 
Macdougal, D. T. — Symbiotic Saprophytism. (With Plates I and II, and 
one Figure in the text.) 
Newcombe, F. C. — Cellulose-Enzymes. 
Sturch, H. H.^Harveyella mirabilis. (With Plates III and IV.) 
Salmon, E. S. — On the Genus Fissidens. (With Plates V-VII.) 
Trow, A. H. — Observations on the Biology and Cytology of a new variety 
of Achlya americana. (With Plates VII I-X.) 
NOTES. 
Burkill, I. H. — On Pelargonium rapaceum, Jacq. 
Scott, D. H. — On Medullosa anglica: a new Representative of the 
Cycadofilices. 
Williams, J. Lloyd. — New Fucus Hybrids. 
No. L, June, 1899, contains the following Papers and Notes: — 
Snow, J. W. — Pseudo-Pleurococcus, Nov. gen. (With Plate XI.) 
Ward, H. M.— Thames Bacteria, III. (With Plates XII-XIV.) 
Darbishire, O. V. — On Actinococcus and Phyllophora. (With Plate XV 
and seven Figures in the text.) 
Dixon, H. H. — The Possible Function of the Nucleolus in Heredity. 
Lang, W. H. — The Prothallus of Lycopodium clavatum, L. (With Plates 
XVI and XVII.) 
NOTES. 
Seward, A. C. — The Structures and Affinities of Matonia pectinata. 
Bower, F. O. — Studies in the Morphology of Spore-producing Members : 
IV. Leptosporangiate Ferns. 
No. LI, September, 1899, contains the following Papers and Notes :— 
Mottier, D. M. — The Effect of Centrifugal Force upon the Cell. (With 
Plate XVIII.) 
Biffen, R. H.— A Fat-Destroying Fungus. (With Plate XIX.) 
Boodle, L. A. — On some Points in the Anatomy of the Ophioglosseae. 
(With Plate XX.) 
De Vries, H. — On Biastrepsis in its Relation to Cultivation. 
Farmer, J. B., and Freeman, W. G. — On the Structure and Affinities of 
Helminthostachys zeylanica. (With Plates XXI-XXIII.) 
Hartog, M. — The Alleged Fertilization in the Saprolegnieae. 
NOTES. 
Hanna, H. — The Plurilocular Sporangia of Petrospongium Berkeleyi. (With 
Figure.) 
Ito, T. — Some remarkable Marine Monocotyledons in Japan. Rhizophoreae 
in Japan. Floating- Apparatus of the Leaves of Pistia Stratiotes, L. 
Reprints from the Annals of Botany 
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Holmes and Batters : Revised List of British Marine Algae (with 
Appendix) : price 2 s. 6d. nett. 
Baker, J. G. : A Summary of New Ferns (1874-90): price $s. nett. 
This forms a supplement to the Synopsis Filicum. 
Baker, J. G. : A Synopsis of the Genera and Species of Museae : price is. 6d. 
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