132 SCIENTIFIC AGRICULTURE. 



EXPLANATION OF THE CUT. 



This cut is designed to show the latitude and altitude at 

 which some of the most important plants flourish in the 

 greatest perfection. It shows also the latitude in which various 

 winds prevail, the latitude where there is little or no rain 

 and also where there is almost constant rain. The scale of 

 miles on the left hand of the cut shows the height of the 

 mountains, the elevation at which plants grow on their sides, 

 and the line of perpetual snow. On the right hand are the 

 degrees of latitude. The locality of plants, as shown by the 

 table, nrj not perhaps strictly accurate in all cases; but they 

 approximate correctness sufficiently near for all ordinary calcu- 

 lations. 



