286 



DIFFERENCE OF CLIMATE. 



The following is the Lawson's mixture for grasses in 

 the rotation : 



Mixture for Mowing in the Rotation. 



As this mixture was designed for use in Scotland, it 

 may be proper to remark that, though the latitude of 

 Edinburgh is 55 57', while that of Boston is but 42 

 21', yet the mean annual temperature of the former is 

 47. 1 Fahr., that of the latter 48.9, showing a very 

 slight difference. But our summers are hotter, and we 

 are annually liable to the most severe and parching 

 droughts, such as are not often felt in the moist climate 

 in Scotland. 



Besides, the Italian rye grass is naturalized there, and 

 gives enormous crops under the rich cultivation of the 

 Lothians and the application of liquid manures. It has 

 not been proved sufficiently capable of withstanding 

 our droughts to give it so much prominence in the 

 mixture, though, as already suggested, it is worthy of 

 more careful trial than it has yet received in this coun- 

 try. I would suggest the following as an improvement 

 for our purposes : 



