394 Report or INSPECTION WORK OF THE 
result of study of the prices actually prevailing in the large 
markets of these states. 
These trade-values represent, as nearly as can be estimated, 
the average prices at which, during the six months preceding 
March, the respective ingredients, in the form of wnmixed raw 
materials, could be bought at retail for cash in our large 
markets. These prices also correspond (except in case of avail- 
able phosphoric acid) to the average wholesale prices for the 
six months preceding March, plus about 20 per ct. in case of 
goods for which there are wholesale quotations. 
TRADE-VALUES OF PLANT-Foop ELEMENTS IN RAW MATERIALS AND 
CHEMICALS. 
1901. 
Cts. per 
pound. 
Nitrogei if PAM mOnIs  SAllSecy aay c.e/te se acai eee pinietevece oe we upie ts eee Teen 1644 
Nitrogen, in, nitrates .\5 2. 2... chile. os sles oie yc eee een tee ies a einen ee 14 
Organic nitrogen in dry and fine-ground fish, meat and blood, and 
mixed: fertilizers |, si. isa’ sse sie kestl vase deaee G dpe ease ola aietane aii “ 16 
Organic nitrogen in fine-ground bone and tankage...... mya [ EOP. 16 
Organic nitrogen in coarse bone and tankage.............+.00. aie 12 
Phosphoric acid, water-soluble.............20- OURS. whee aes Suh D 
Phosphoric acid; citrate-soluble.:. i visser & teen teas «ia tefege Seats ‘ 4\% 
Phosphoric acid in fine-ground fish, bone and tankage........... : 
Phosphoric acid in coarse fish, bone and tankage..............«. 3 
Phosphoric acid in mixed fertilizers, insoluble in ammonium cit- 
rate and water 2.60. 00 vei s oo nb'a Koes ln eee Pe ee 2 
Potash as high-grade sulphate, in forms free from muriates (chlo- 
rides), “in HeNeR, Ste shee Sec aib cisphle jess ris’ » a ietehece 6 yan cant ee 5 
POLaslTIITMUrigte:s os caes crete ete see eras ss pe ee ve OG Sate 4%, 
| re reer a ry 
COMPARISON OF SELLING PRICE AND COMMERCIAL VALUATION. 
Giving to the different constituents the values assigned in the 
schedule for mixed fertilizers, 16 cents a pound for nitrogen, 5 
cents a pound for water-soluble phosphoric acid 44 cents a 
pound for citrate-soluble phosphoric acid, 2 cents a pound for 
insoluble phosphoric acid, and 44 cents a pound for potash, we 
can calculate the commercial valuation, or the price at which 
the separate unmixed materials contained in one ton of fertil- 
izer, having the composition indicated in the preceding table, 
could be purchased for cash at retail at the seaboard. Knowing 
the retail prices at which these goods were offered for sale, we 
can also readily estimate the difference between the actual sell- 
