( lxxvi ) 
ROYAL AGRICULTURAL SOCIETY OF ENGLAND. 
Guide to the Purchase of 
FEEDING-STUFFS AND MANURES. 
FEEDIN G-STUFFS. 
Linseed-cake, Cotton-cake (Decorticated and Undecorticated), and 
Rape-cake (for feeding purposes) should be purchased according to the 
Society’s form of contract. A supply of these forms will be sent to any 
Member upon application. 
Purchasers are reminded that the use of such terms as “ best,” “ genuine,” 
“ 95 per cent.,” “ oil- cake,” &c., affords no security against adulteration. 
Mixed Feeding-cakes, Meals, &c., should be purchased with a 
guarantee of analysis and of fitness for feeding purposes. 
On delivery of a purchase, a sample should at once be taken from the 
bulk, one half to be sent for analysis, and the other half retained for 
reference. 
MANURES. 
Raw Bones, Bone-meal, or Bone-dust should be guaranteed 
“ pube,” and to contain from 45 to 48 per cent, of Phosphate of Lime, and 
not less than 4 per cent, of Ammonia. 
Boiled Bones should be guaranteed “ pube,” and to contain from 
55 to 60 per cent, of Phosphate of Lime, and not less than 1 per cent, of 
Ammonia. 
Mineral Superphosphate of Lime should be guaranteed to contain 
a certain percentage of “ Soluble Phosphate.” [From 25 to 28 per cent, of 
Soluble Phosphate is an ordinarily good quality.] 
Dissolved Bones should be guaranteed to be “ made from raw bone 
and acid only,” and should be sold to contain stated percentages of Soluble 
Phosphate, Insoluble Phosphates, and Ammonia. 
Compound Artificial Manures, Bone-manures, Bone Com- 
pounds, &C., should be sold by analysis stating the percentages of Soluble 
Phosphate, Insoluble Phosphates, and Ammonia contained. 
Peruvian Guano should be described by that name, and be sold with 
a guarantee of analysis. 
Sulphate of Ammonia should be guaranteed to be “ pube,” and to 
contain not less than 24 per cent, of Ammonia. 
Nitrate of Soda should be guaranteed to contain 95 per cent, pure 
Nitrate of Soda. 
Kainit should be guaranteed to contain 23 per cent, of Sulphate of Potash. 
All manures should be guaranteed to be delivered in good and suitable 
condition for sowing. 
Upon delivery of a purchase, a sample should at once be drawn from the 
bulk, one half to be sent for analysis, and the other half retained for reference. 
