32 Co-operation in Purchase of Manures. 



" The ground bones to be a genuine sample of pure raw bone 

 \-inch and dust together guaranteed to contain not less than 

 45 per cent, of tribasic phosphate of lime, and to yield not less 

 than 4 \ per cent, of ammonia, and is. 6d. will be deducted for 

 every unit under 45 per cent, of tribasic phosphate, and 12s. 

 for every unit under 4^ per cent, of ammonia (and so in pro- 

 portion for any less quantity than a unit under 4^ per cent, of 

 ammonia). 



" The bone meal to be a genuine sample of pure raw bones, 

 guaranteed to contain not less than 48 per cent, of tribasic 

 phosphate of lime, and to yield not less than 4^ per cent, of 

 ammonia, and is. id. will be deducted for every unit under 

 48 per cent, of tribasic phosphate, and 12s. for every unit under 

 41 per cent, ammonia (and so in proportion for any less quantity 

 than a unit under 4^ per cent, of ammonia). 



"The merchant will be required, at his own expense, to enter 

 into a legal contract (to be approved by the association) to 

 supply the manures in accordance with this circular." 



On the arrival of the cargo samples of manure for analysis 

 .are taken by an agent of the manufacturer and the agent of the 

 association, and forwarded to the analyst of the association. 

 If the analyses given by him are not satisfactory to the manu- 

 facturer, the latter is at liberty to have a further sample analysed 

 at his owti expense. 



This association has a slight advantage in connection with 

 the sampling of consignments in that their district lies round a 

 seaport, so that their purchases arrive by boat, and can be 

 sampled before distribution takes place. In the case of other 

 similar associations in inland districts, the manufacturers despatch 

 the goods by rail direct to the members, and such associations 

 have to content themselves with sampling a small number of 

 the consignments after delivery to their members. 



It is the practice of some associations to cause samples to be 

 taken in the manner required by the Fertilisers and Feeding 

 Stuffs Act, and send them to the official analyst appointed under 

 that Act for their district, but others retain the services of a 

 private analyst. The advantages of sending samples to an 

 official analyst are as follows : — 



(1). Samples taken under the Act and submitted to the official 



