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The Connecticut Agricultural Station Reports 
for 1907, 1906, 1905, 1904 on the 
Relative Cheapness of High and Low Priced Fertilizers. 
The official reports of the Connecticut Experiment Station for 1906, 1905 and 1904 
contain the analyses of some eight hundred samples of brands of mixed fertilizers (samples 
taken in the market). In these reports of analyses the MAPES MANURES are given the 
highest valuation of all and on the ordinary basis of figuring "valuations;” no benefit is 
received by the MAPES MANURES for the superior and more costly forms of Potash, 
as Nitrate of Potash and Carbonate of Potash (eight cents instead of five cents per lb.), 
nor of the superior forms in Peruvian Guano, Pure Animal Bone Flour, of Nitrogen, 
Ammonia, Phosphoric Acid, Potash, etc. 
Mapes Top Dresser, full strength 
Year. 
1904 
1905 
1906 
Official number. 
11775 
14191 
16546 
See note* 
Average 3 years 
Found 
Found 
Found 
Guax*antee 
Ammonia 
12.17 
11.97 
12.73 
12.29 
12 
Phosphoric 
Acid. 
•7.93 
8.44 
7.73 
8.03 
8 
Tobacco Manure, Wrapper Brand. 
Potash. 
6.51 
5.41 
4.56 
5.50 
4 
Year. 
1904 
1905 
1906 
Nearly all soluble. 1 
•Ammonia total 12.17, insoluble (organic) 0.43. Phosphoric acid, total 7.93, insoluble 214 
Potash, 6.51, All soluble. 
Mapes Top Dresser, half strength (Half Plaster) 
1904 17757 See note* Found 6.52 4.08 
1905 14374 Found 6.01 4.54 
1906 10543 Found 6.56 3.97 
Average 3 years 6.36 4.20 
Guarantee G 4 
Official number. 
^Average 3 samples Found 
14441 See note* Found 
16704 Found 
Average 3 years 
Guarantee 
Phosphoric 
Ammonia. Acid. Potash. 
8.01 
7.89 
7.78 
7.89 
7.50 
5.44 
5.96 
5.69 
5.70 
4.50 
10.60 
11.08 
10.98 
10.89 
10.50 
tStation Number 1904 samples 11590—11913-12130. —— ~ — 
•Nearly all soluble. 
Ammonia total 7.89 insoluble (organic) 1.85. Phos. acid total 5.96 insol. 1.29. Potash 11 08 
Ail soluble. 
Nearly all 'soluble. 
Ammonia total 6.52, insoluble (organic) 0.19. 
Potash, 3.10. AH soluble. 
1904 
1905 
1906 
Average Soil, Complete Manure. 
11755 See note* Found 5.33 
14482 Found 5.08 
16527 
Found 
Average 3 years 
5.38 
5.26 
Phosphoric acid total, 4.08, insoluble 1.22. 
Guarantee 
7.55 
8.51 
8.62 
8.29 
8 
6.32 
5 43 
5.76 
5.84 
1904 
1905 
1906 
Vegetable or Complete for Tight Soils 
•Nearly all soluble. “““ “- 
Ammonia total 5.33 insoluble (organic) 0.54. Phos. acid total 7.75. insol. 2.12. Potash 6 32 
All soluble. 
11730 
14193 
16541 
See note* 
Average 3 years 
Found 
Found 
Found 
•Nearly all soluble. 
Ammonia total 7,55, 
Guarantee 
7.55 
6.48 
6.68 
6.90 
6 
8.16 
8.66 
8.53 
8.45 
8 
7.35 
7.41 
6.82 
7.19 
G 
1904 
1905 
1906 
11851 
14395 
16806 
Fine Bone Dissolved. 
See note* Found 3.53 
Average 3 years 
F ound 
Found 
Potash, 7.35. All soluble 
Insoluble (organic) 0.61. Phosphoric acid, total, 8.16, insolublo 1.99. 
n nniA 
Guarantee 
3.52 
3.92 
3.66 
2.50 
15.76 
15.53 
16.71 
16 
12 
•Ammonia totnl 3.5!), insoluble (organic) 2.69. Phos. acid total, 15.76 insol. 0.92. 
Official Analyses Issued by the Connecticut Agricultural Experiment Station for 1907. 
Voar 
1907 
1907 
1907 
1907 
1907 
Number 
19151 
19010 
19187 
19378 
19298 
Mapes Top Dresser, full strength 
Mapes Top Dresser, half strength 
Vegetable or Complete Manure for Tight Soils 
Tobacco Manure, Wrapper Brand . 
Average Soil Complete Manure .... 
Ammonia 
12.07 
G.Ol 
6.36 
7.GO 
5.23 
Phos. Acid 
7.84 
3.94 
8.85 
5.25 
8.29 
Potash 
4.25 
2.14 
6.09 
11.43 
6.26 
“As a Rule, Fertilizers Which Sell at a Low Price are Really the Most Costly.” 
Page 55, Connecticut Station Report for 1905: 
“As a rule, fertilizers which sell at a low price are really the most costly if we regard the amount of 
plant food in them. 
Some brands of fertilizers sold in Connecticut by reputable manufacturers, and freely bought by some 
farmers supply scarcely more than one-third of the plant food which can be bought for the same amount of 
money in other brands which are sold in the same places. * That is, in buying these brands, the farmer is simply 
throwing away two-thirds of his purchase money.” 
The MAPES MANURES in this Connecticut Station Report, 1905, also for 1904, are given the highest 
valuation of all mixed fertilizers, samples taken in the market, on the ordinary basis of figuring “ valuations .” 
The American Agriculturist , Orange Judd Co., in reviewing this report for 1905, states: 
“ The Connecticut Agricultural State Report again confirms what we have so often urged—that the cheaper 
the price per ton of a commercial fertilizer , the higher the cost per pound of the actual Nitrogen , Potash and Phosphoric 
Add it contains . Accordingly, it is not surprising that Or. Jenkins contends some farmers are not getting 
the benefit from fertilizers that they might, because they go for cheapness instead of quality .” 
Exactly 600 commercial fertilizers and waste products have been analyzed and tabulated.” 
u 
VALUATION” OF FERTILIZERS 
They Fail to Determine the Quality of Goods. Established Reputation the Main Security to the Purchaser. 
Extracts from Annual Report of the Connecticut Agricultural Experiment Station, 
Prof. S. W. Johnson, Director, for year 1895. Issued December, 1895. 
“The valuations, A must be remembered, are based on the assumption that the nitrogen, phosphoric acid, and 
potash in each fertilizer are readily available to farm crops. Chemical examination can show pretty conclusively 
whether this is true in respect to potash. There is less certainty regarding phosphoric acid, while chemical ex¬ 
amination, as it is usually made, gives little or no clue as to the availability of the organic nitrogen of mixed goods.” 
“While various inferior or agriculturally worthless forms of nitrogen are in the market, the main security 
ot purchasers of mixed fertilizers is in dealing with firms which have an established reputation , and in avoiding 
‘cheap’ goods offered by irresponsible parties.”—Page 39. 
The Mapes Formula and Peruvian GuanoCo. 
Descriptive pamphlets mailed free. 
143 LIBERTY STREET, NEW YORK 
Branch, 239 STATE STREET, HARTFORD, CONN. 
