10 Farmyard Manure. 



* Containing nitrogen 



Equal to ammonia 



f Containing nitrogen 



Equal to ammonia 



Whole manure contains ammonia in free state, ) 

 and in form of salts .. / 



From these analytical results it appears 



1. That completely rotten dung contains less soluble organic 

 matters than well rotten common farmyard manure. 



2. That the proportion of insoluble organic matters in such 

 sheep's dung is also much smaller than in rotten yard manure. 



3. That the amount of nitrogen in rotten farmyard manure is 

 greater than in this sheep's dung. 



4. That, weight for weight, ordinary well rotten dung is more 

 valuable than such completely decomposed sheep's dung. 



When it is considered that the diminution of manure in 

 weight by long keeping is very considerable, and that the 

 remaining manure, reduced it may be to one-third its original 

 weight, is less valuable than even common farmyard manure, the 

 folly of keeping sheep's dung in a heap for a number of years 

 will become apparent. 



As it may not be uninteresting to compare this manure with 

 fresh sheep's dung, I will insert here a Table representing the 

 general composition of fresh sheep's dung, as recently determined 

 by me : 



General Composition of Fresh Sheep's Dung (Sheep fed upon Roots on old 



Pasture.') 



In Natural State. Calculated Dry. 



Moisture .. 73-13 



* Organic matters 20'28 75'47 



Inorganic matters (ash) .. 6'59 24'53 



100-00 100-00 



* Containing nitrogen -95 3-53 



Equal to ammonia 1-15 4-29 



Fresh sheep's dung thus contains considerably more nitrogen 

 than the sample of completely rotten dung which was analysed 

 by me. 



During the first stages of the fermentation of dung the pro- 

 portion of nitrogen in manure increases, but when well-fermented 



