^ 13 1929 /3^txX^(^ 

 Price (to Non-Fellows) 5s. AUGUST, 1915. 



Vol. XLI. Part I. 



THE 



JOURNAL 



OF THE 



l Soclet 



EDITED BY 



F. J. CHITTENDEN, F.L.S. 



The whole of the contents of this volume are copyright. For permission to 

 reproduce any of the articles application should be made to the Council. 



CONTENTS. 



PAGE 



Trees of the Cambridge Botanic Garden By R. J. Lynch, M.A., 



V.M.H., A.L.S 1 



Trees and Shrubs of the Pacific Coast. By F. R. S. Balfour, M.A., F.R.H S. 21 

 On Keeping Orchards Clean. By Prof. H. M. Lefroy, M.A., F.Z.S ... 28 

 On Pressing Flowers to Retain their Colours. By Dr. Claud F. 



Fothergill 40 



Changes of Colour and Structure of Flowers. By Col. H. E. Rawson, 



C.B., R.E 42 



The Passing of Darwinism. By Rev. Prof. G. Henslow, M.A., F.L.S., V.M.H. 47 

 Darwin's Alternative Explanation of Evolution. By Rev. Prof. G. 



Henslow, M.A., F.L.S. , V.M.H 54 



Chrysanthemums in Pots. By Thomas Stevenson, F R.H.S 64 



Meteorological Observations at Wisley, 1914. By R. H. Curtis, Hon. 



F. R.H.S 74 



Contributions from the Wisley Laboratory: 



XXV— On the Influence of Planting-Distance on the Yield of 



Crops. By F. J. Chittenden, F LS. ... - ... 88 



XXVI— The Effect of Manganese Sulphate on the Yield of 



Turnips at Wisley. By F. J. Chittenden, F.L.S 94 



XXVII — Growth of Apple Trees Pruned and not Pruned in the 



Season of Planting. By F. J. Chittenden, F.L.S 97 



XXVIII— The Control of Peach-Leaf Curl. By A. S. Horre, D.Sc, 



F.G.S., F.L.S 110 



Winter-Flowering Sweet Peas at Wisley, 1914-15. By C. C. Titchmarsh 115 

 The Origin of Campanula "Norman Grove" By T. B. Grove, F.R.H. S. 123 

 Note on Further Trials of Explosives in the Garden. By H. E. Durham, 



Sc.D., M.B., B.C., F.R.C.S 124 



A Note on Storing Apples. By G. O. Nicholson, F.R.H. S 128 



Book Reviews 129 



Notes and Abstracts 144 



Extracts from Proceedings: General Meetings, p. i; Annual General 

 Meeting, p. ii ; Scientific Committee, p. xxxvi; Fruit and Vege- 

 table Committee, p. xlix ; Floral Committee, p. liv; Orchid Com- 

 mittee, p. Ixvi ; Notices to Fellows, p. Ixxiv. 

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