ON COMMON DUNG BEDS. 13 



rience has convinced me that the period of eight 

 weeks is better. 



Should the dung be taken from old linings 

 which had been previously worked, it will an- 

 swer the purpose without further preparation, 

 provided it retains sufficient strength to pro- 

 duce fermentation when made into a bed ; other- 

 wise it will not become sweet. 



This seed-bed should be three feet high at the 

 back, and two feet six inches in front ; and when 

 the lights are put on, eight or ten days should 

 be allowed for the bed to sweeten before the 

 seeds are sown ; during which time the surface 

 of the bed should be forked over every other 

 day, about a foot deep ; and should it appear 

 dry, as much water should be given as will make 

 it moderately wet. Air must be admitted by 

 raising the lights at the back with a wooden 

 wedge, according to the quantity found neces- 

 sary to be given, to admit the steam to pass off 

 freely. 



In order to prove whether or not the bed be 



