14 GENERAL REMARKS. 



wipe off the tar in the operation. Tar is also an effectual 

 remedy against smut in wheat After being heated in a 

 kettle until it becomes thin, it may be stirred in amongst the 

 grain until it becomes saturated. The wheat should after- 

 wards be mixed with a sufficient quantity of wood ashes to 

 dry and render it fit for sowing. 



To prevent depredations from crows, steep corn in strong 

 saltpetre brine, sow it over the land, or steep your seed corn, 

 and if the crows once get a taste, they will forsake the field. 



Perhaps the next important point to be attended to, is the 

 most proper rotation of crops. Virgil, who was a philoso- 

 pher as well as a poet, very justly observes, that " THE TRUE 



REPOSE OF THE EARTH IS A CHANGE OF ITS PRODUCTIONS." 



It is a curious fact, that a plant may be killed by the 

 poison which it has itself secreted, as a viper may be stung 

 to death by its own venom. Hence it has been very gene- 

 rally noticed, that the soil in which some particular vegeta- 

 bles have grown, and into which they have discharged the 

 excretions of their roots, is rendered noxious to the pros- 

 perity of plants of the same or allied species, though it be 

 quite adapted to the growth and support of other distinct 

 species of vegetables. 



It is proved by experience, that fall Spinach is an excel- 

 lent preparative for Beets, Carrots, Radishes, Salsify, and 

 all other tap, as well as tuberous-rooted vegetables. 



Celery, or Potatoes, constitute a suitable preparative for 

 Cabbage, Cauliflower, and all other plants of the Brassica 

 tribe ; also Artichokes, Asparagus, Lettuce and Onions, 

 provided that such ground be well situated, which is a cir- 

 cumstance always to be duly considered in laying out a 

 garden. 



Lands that have long lain in pasture are for the first 

 three or four years after being tilled, superior for Cabbage, 

 Turnips, Potatoes, &c. and afterwards for culinary vege- 

 tables in general. 



The following rules are subjoined for further government : 



Fibrous-rooted plants may be alternated with tap^ of 

 tuberous-rooted, arid vice versa. 





