X m PREFACE 



the master only, but the pupils also will be able to read it with, 

 pleasure and profit.- 



While always insisting on the practical side of this instruction, 

 which is not only the indispensable introduction to the elements 

 of agriculture and horticulture taught in the universities, but 

 also the basis of all practical or technical instruction on general 

 science, we have not neglected the purely scientific Side, because 

 system and classification are a great assistance to children in 

 arranging what they are taught into an orderly series of ideas ; 

 but we have explained it in the most simple manner, so that it 

 may be easily understood. 



