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Fish. Fish in an incipient state of decay, 

 when dried and powdered, form an excellent 

 manure. Dried herring contain 10.54 per ct. 

 of nitrogen; when moist, only 0.19. Tho- 

 roughly dried Codfish has 10.86 nitrogen. 



Glue maker^s Residue. The residue from 

 the glue kettles consists of tendinous and cu- 

 taneous matters, hair, residue of bones, horn, 

 muscles, calcareous soap and earthy matters. 

 This mixture, when dried, can be preserved 

 for a long time, and having 4 per ct. of nitro- 

 gen, is consequently a good manure. 



Cracklings. The dregs of all kinds of 

 rough suet are termed cracklings. They con- 

 sist chiefly of adipose membranes, still im- 

 pregnated with a little fat, of blood, muscle 

 and bone. Formerly they were used as food 

 for dogs, but they also yield good results as a 

 manure. They contain 11 to 12 per cent, of 

 nitrogen, and reach the market in hard pressed 

 cakes, which must be crushed previous to ap- 

 plication to the soil. 



Woollen JRaors. These are of the richest 



o 



manures. The slow decomposition of the 

 wool renders it potential for six or eight years, 

 and as its proportion of nitrogen is consider- 

 able, it is very convenient for transportation. 



