DESCRIPTION OF PLATES. 



Plate I. Frontispiece. — West Indian-South American avocado tree, about 35 years 

 old, growing on a coral breccia reef. Produces fruits of fine quality. Ripens 

 purple. 



Plate II. Fig. 1. — Crown-worked avocado tree eighteen months after insertion of 

 .bud. The bud was placed in a sprout that had started from a stump of a tree 

 the summer before. West Indian-South American variety. About 8 feet tall. 

 Fig. 2. — Top-worked tree eighteen months after insertion of bud, which was 

 placed in a green sprout. The tree was approximately of the same age and vigor 

 as the one shown in Plate II, figure 1. Mexican variety. Aliout 12 feet tall. 

 Compare the general mode of growth, arrangement of leaves, etc., with the tree 

 shown in Plate II, figure 1. 



Plate III. Nursery tree two years old, transplanted from seed bed. West Indian- 

 South American variety. A good, vigorous stock for budding. About 4 feet 

 tall. 



Plate IV. Fruiting branch of West Indian-South American variety, showing the 

 manner in which the fruit is borne ujjon the branches. The photograph from 

 which this illustration was made was taken from the inside of the tree to bring 

 out the peculiar mode of attachment. This branch may be considered as carry- 

 ing a very heavy crop. Fruits about one-tenth natural diameter, ripening green. 

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