196 COFFEE : ITS CULTIVATION AND PROFIT. 



by i foot deep, or 20 inches square by 18, 

 according to taste and space. If the object be 

 to collect water and save wash, the more holes 

 the better ; while if it be in a dry district, and 

 intended to catch the accumulated surface debris, 

 fewer will do, and the earth taken from them 

 may with advantage be thrown back on to the 

 exposed stems of the bushes, where it will do 

 good service." 



Having thus noted how the water must be got 

 rid of and soil protected where the land is steep 

 and exposed to wear and tear of wind and rain 

 by trenches, water holes, or such like contrivances, 

 we may turn to the question of manuring proper. 

 This subject has a full and learned literature of its 

 own. Nothing but the popular and generally- 

 received results of much experiment and expenditure 

 can be brought within the limits of a few pages. 

 The action of various manures upon the compli- 

 cated structure of our plants, and their fine chemical 

 properties, cannot be gone into in so practical a 

 manual as this. A mere enumeration of those 

 which have been found the most serviceable is all 

 our limits will allow. Such a list includes 



Cattle manure. 

 Other animal manures. 



Poonac and bones (in proportion of two to one 

 in weight). 



Bones and guano. 



