CHOICE or SITE FOE TEMPOEAEY NUESEEIES. 217 



just above the girdle aud may result in increased vigour of growth 

 in the region of the union. The stock is usually a plant only a few 

 years old, while the scion is a small branch of the same thickness 

 of a large tree. Good varieties of mango are always propagated 

 by inarching. 



In baring the cambium for the purpose of inarching, either the 

 wood need not be touched at all, or a thin slice of wood may be 

 removed with the bark. In Fig. 66 the stock and scion are kept 

 more or less parallel to one another, but they may be crossed. 



SECTION VI. 

 Temporary Nurseries. 



All temporary miseries possess two essential characteristics. 

 In the first place, they must be situated in the middle of, or close 

 to, the spot to be planted up ; and in the second place, we raise 

 in them only the number of seedlings that are required to stock 

 or fill up within a given time a given area with a certain few 

 definite species. These two characteristics regulate the esta- 

 blishment and entire course of management of nurseries of this 

 class. 



ARTICLE 1. 

 Choice of Site. 



Owing to the first characteristic the selection is confined to a 

 limited area. Within that area we must find the most suitable 

 spot for the purpose in view. 



The number of species being necessaxily few, and frequently 

 reduced to a single one, the choice of soil presents Kttle difficul- 

 ty. The soil should possess the average, never the exaggerated, 

 qualities of the soil of the area in which the seedUngs are to be 

 used. For instance, if the general character of the soil in that 

 area is sandy, the soil of the nursery must not be a pure sand, but 

 one in which the sandy character predominates less or more, 

 according to the prevaiHng type of soil. Again if a stony element 

 is the rule, the nursery should not be estabhshed in the most stony 

 spot to be found within the area. And so on. 



As regards locahty the most level plot of land should be selected. 

 In the plains it should not be a hoUow, but a piece of rising ground 

 in which water cannot lodge, but from which also it does not draia 

 off too easily. In the hills old fields generally offer the best sites. 

 The general configuration, aspect and altitude should, like the soil, 

 approach the happy mean, and all exaggerated characters should 

 be carefully avoided. 



