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GUIDE TO THE PURCHASE OF ARTIFICIAL MANURES 
AND FEEDING STUFFS. 
Fekding Cakes. 
1. Linseed-cake sbouM he purchased as " Pure," and the insertion of this 
word on the invoice should be insisted ui)on. 'i'lie use of such words as 
" Best," " Genuine," &c., should be objected to by the purchaser. 
2. llape-cake for fccdiri'j 2'ur2JOScs should be guaranteed " Pure " and 
purchased by sample. 
3. Bvcorticakd Cotton-cake should be guaranteed " Pure," and jjurchased 
by sample. 
4. Undecorticated Cotton-cake should be guaranteed " Pure/' and purchased 
by sample. 
N.B. — All feeding cakes should be purchased in good condition, and the 
guarantee of the veuilor should be immediately checked by a fair sample (taken 
out of the middle of tlie cake) being at once seat for examination to a competent 
analytical chemi^t. The remainder of tlie cuke from which the sample sent for 
examination had been taken should be sealed up in the presence of a witness, and 
retained by the purchaser foi' reference in case of disf)ute. 
Artificial Manures. 
1. Haw or &reen Bones or Bone-dust should be purchased as "Pure" 
Piaw Bones guaranteed to contain not less than 45 |)er cent, of tribasic phosphate 
-of lime, and to yield not less than 4 ]ier cent, of ammonia. 
2. Boiled Bones should be purchased as "Pure" Boiled Bones guaranteed 
to contain not less than 48 per cent, of tribasic phosphate of lime, and to yield 
not less than If per cent, of ammonia. 
3. Dissolved Bones are made of various qualities, and are sold at various 
prices per ton ; therefore the quality should be guaranteed, under the heads 
■o{ soluble phosphate of lime, insoluble phosphate of lime, and nitrogen or its 
•equivalent as ammonia. Tlie piu'chaser should also stipulate for an allowance 
for each unit per cent, which the dissolved bones should be found on analysis 
to contain less than the guaranteed percentages of the three substances 
already mentioned. 
4. Mineral HuperpJwsphatcs s^hould be guaranteed to be delivered in a 
sufficiently dry and ])owdery condition, and to contain a certain percentage of 
soluble phosphate of lime, at a certain price per unit per cent., no value to be 
attached to insoluble phosphates. 
5. Compound Artificial Manures should be purchased in the same manner 
and with the same guarantees as Dissolved Bones. 
6. Nitrate of Soda should bo guaranteed by the vendor to contain from 
i34 to 95 per cent, of pure nitrate. 
7. Sulj^hate of Ammortia should be guaranteed by the vendor to contain 
(not less than 23 per cent, of ammonia. 
8. Peruvian Ouano should be sold under that name, and guaranteed to be 
in a dry and friable condition, and to contain a certain percentage of ammonia. 
N.B. — Artificial mantires should be guaranteed to be delivered in a sufficiently 
dry and powdery condition to admit of distribution by the drill. A sample for 
analysis should be taken, not later than three d;iys after delivery, by emptying 
several bags, mixing tlie contents together, and filling two tins holding about 
half a pound each, in the presence of a witness. Both the tins should be sealed, 
one kept by the purchaser for reference in case of dispute, and the other for- 
warded to a competent analytical chemist for examination. 
