yoo 



as meat, or Liebig's extract of meat. It contains from 3 to 8 per 

 cent, of nitrogen and from 15 to 20 per cent, of phosphoric acid. 

 It is principally made in South America. Xe\v Zealand and Queens- 

 land, in the tinned meat works. It is also made in Germany from 

 the carcases of diseased animals by treating them with steam to 

 extract the fat and gelatine, the refuse being dried and ground 

 up for a manure. " This manure generally contains less phosphoric 

 acid and more nitrogen than that made in the tinned meat works. 

 These manures are not of a high class value, their action in the 

 soil being slow, owing to most of their constituents being in a very 

 insoluble state, and not in such a state that they can be readily 

 taken up by growing crops. These manures are mixed up with 

 dried blood and fiesh, and further mixed with bone ash, steamed 

 bones or mineral phosphates, and sold under the name < f bone 

 dust. They have no right to be called or sold as bone-dust, as 

 thev are nothing of the kind, nor are they of the value of bone- 

 dust as a fertilizer. I would consider that any manufacturer or 

 merchant who sells such a mixture is committing a fraud if he sells 

 it as bone-dust. 



FISH MANURES, OR GUAXO. 



These are made from the refuse of fish after extracting the oil, 

 also from tish that is not marketable, as well as from that which has 

 become tainted, and from the iish bones, scraps, and entrails from 

 canneries in America, Norway, and to some extent in England. 

 These manures contain from 6 to 8 per cent, of nitrogen, and 6 to 7 

 per cent, of phosphoric acid. Those Iish manures made from the 

 raw fish are not so valuable as those made from the boiled iish, as 

 the oil in the raw tish guano retards the fermentation of the manure 

 in the soi . The same also applies to the me.t-meal or flesh 

 guano. 



Dr. A. Vollcker gives the analyses of two samples of dried tish 

 manures : 



