matter of course, a number still remain in doubt; as the plants produce flowers, how- 

 ever, they will, if practicable, be determined, and the results given at the end of 

 Vol. IV. 



Mr. J. GARRETT, as in the First and Second Volumes, has undertaken the 

 preparation of those portions relating to Fruit and Vegetable Culture, Florists' 

 Flowers, and General Gardening Work. 



Prof. J. W. H. TRAIL, M.D., F.L.S., &c., has written the articles on Fungi, 

 Insects, Plant Diseases, Plant Structure, Horticultural Chemistry, Soils, &c. 



The Rev. P. W. MYLES, B.A., has continued to work out and check off 

 the derivations of the generic names, a task which very frequently demands no 

 little labour. 



GEORGE NICHOLSON, A.L.S., 



Curator, Royal Gardens, Kew. 

 ROYAL GARDENS, KEW. 





