l
  Y
Commercial Fertilizers. 255
sieve with meshes one-sixth inch square, but does not include
fine bone.
  · Nitrogen in all fertilizers ....................... 150 per lb.
Potash in all fertilizers, from sulphate. .......... 6c per lb.  
* Potash in all fertilizers, from muriate ............ 50 per lb. ,
’ ‘ The term "Potash from Muriate" does not indicate neces— R i··
% sarily that the manufacturers used muriate of potash in fur-  
. nishing the potash; they may have used sulphate of potash, or   fi
  other salts of potash, but in all fertilizers where the term  
i “Potash from Muriate" isnused there is enough chlorine pres- Agi
g ent to combine with the potash, either from salt in the tankage   gr
  used, or the potash salts used, as muriate, kainit, carnalite, _  
  _ etc. As the objection to the use of muriate of potash arises I
i from the chlorine present in this salt, it likewise follows that
chlorine in a fertilizer is objectionable, whether put in with
the potash or otherwise. The using of sulphate of potash .
  where there is chlorine present in other ingredients of the fer-
  tilizer will not obviate the injurious effects of the chlorine, and 9
I therefore we take this method of showing chlorine present by ·
designating the potash as "from muriate."
Exploitation of the Table. In the table of analyses under
the column headed "From Whom Obtained," all samples · _
marked L`Manufacturer" are those furnished by the manufac-  
turer at the time the fertilizer was entered for sale. All other ~  
samples were collected by deputy inspectors or sent by farmers, _ `
The analysis guaranteed by the manufacturer follows the  
analyses of these other samples and is printed in italic fig-  
ures.  
· The figures in the table which are set in bold face type are ‘
those results which, in the judgment of the Director, were too ia »
low to be acceptable. \Vhere the total phosphoric acid in    
{_ samples of bone is marked with (*) it indicates that the bone i ke
  contains soluble phosphoric acid. This soluble phosphoric `
_ acid is an indication of either the addition of acid phosphate
to the bone, in which case it would not be a pure raw bone,
or else that the bone containing this soluble phosphoric acid
was not strictly a pure or high grade bone, but contained
trashy materials, which carried with them the soluble phos-
phoric acid.
The names of the manufacturers are arranged in alphabetical
  order, and all the analyses ofthe same brand have been grouped
together.
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