187 



BOOK L 



' PART IV. 



AGRICULTURE. 



INTRODUCTION. 



Hus bandry, the most ancient, useful, and agreeable of arts, 

 may be included under the following heads: 1st, Agriculture, 

 and the management of live stock ; 2dly, Planting ; and, 3dly, 

 Gardening: each of which admits of several subdivisions. 

 The principles of husbandry are derived from nature : either 

 by observation, or by experimental inquiry. Observation re- 

 lates chiefly to a knowledge of the three kingdoms of nature, as 

 they appear in their pristine, or uncultivated state. Experi- 

 mental inquiry relates to the effects of culture, or artificial 

 agency, on the subjects of these kingdoms, and to the mecha- 

 nical powers of the implements by which culture and other 

 purposes are effected. 



