CONTENTS OF VOL. XLI 



PAGE 



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



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



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 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.L.S 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. Home, 

 D.Sc., F.G.S., F.L.S 110 



XXIX. — Report |oi3% ^Experiments with Bacterized Peat, or 

 Humogen. By F. J. Chittenden, F.L.S 305 



Winter- Flowering Sweet Peas at Wisley, 191 4-1 5. By C. C. Titch- 



marsh 115 



The Origin of Campanula ' Norman Grove.' By T. B. Grove, F.R.H.S. . . 1 23 

 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, 349, 481 



Notes and Abstracts 144, 365, 505 



Masters Lectures : Recent Investigations on the Production of 



Plant Food in the Soil. By E. J. Russell, D.Sc 173, 188 



Flora of North-Western Yunnan. By G. Forrest 200 



The Clematis. By A. G. Jackman, F.R.H.S 209 



Respective Values of Organic and Inorganic Manures. By H. E. P. 



Hodsoll, F.I.C T 217 



On Oidium Mildew on Carnations. By W. B. Mercer, B.Sc 227 



Winter Washes tried at Wisley, 1914-15. By Prof. H. M. Lefroy, M.A. 230 



Report of the Tulip Nomenclature Committee 234 



Phloxes at Wisley, 1915 250 



Pyrethrums at Wisley, 191 5 265 



Early Peas at Wisley, 1915 277 



Early and Mid-season Potatos at Wisley, 191 5 290 



Commonplace Notes 327, 469 



