196 OF MANURE. 



No. 3. First space due out equally deep as No. 2. the oarth of which 

 is thrown back, and left to cover up the end of the heap when com- 

 pleted. 



No. 4, 5, 6, 7, 8, 9, 10. Similar trenches, 8 feet by 3|. 



Section. 



A First bed of lime, 4 inches thick. 



B B Earth 6 inches thick alternately with C C lime, until about 5 feet 

 high ; but the height depends on the depth of soil where the lime 

 is laid down. 

 DD D Expansion of the heap after lying about 48 hours. 



When expanded to the utmost, it is smoothed again with a spade, all 

 cracks filled up, and the rain does not penetrate but runs off. 



The proportion of earth to lime most advantageous is 3 to 1 of lime- 

 shells. Each cart then carries out when full 1 boll lime. Forty carts of 

 the composition is sufficient for an acre of strong soil ; 30 carts if gra- 

 velly or sandy. 



The compost heap may be of any length ; but 150 or 200 bolls is 

 enough for one. If proper earth can be got in different places of a field, 

 it saves carriage. 



4. Mr Dudgeon of Primrose-Hill, considers it to be the 

 most advantageous mode of applying lime, to lay it on in a 

 powdery state, upon ground when under summer-fallow, 

 before the fallow receives the last furrow, and then to mix 

 it intimately with the soil, by harrowing before it is plough- 

 ed in. In regard to liming fallows, Mr Rennie of Phan- 

 tassie observes, that it is the most profitable mode of appli- 

 cation, if it is laid on at a proper season. He has been in 

 the practice, for these ten years past, of laying lime on his 

 fallows, from the 1st of April to the 1st of October, and al- 

 ways found, that the first laid on produced the best crops, 

 which he ascribes to its being more minutely mixed with 

 the soil, by the more numerous ploughings and harrowings, 

 and of course the fermentation c more complete, than what 

 is laid on late in the season : June and July, therefore, are 



