[1] Day, Mineral Resources of the United States 193, pp. 703, et seq.
[2] Massachusetts Agricultural Experiment Station, Bulletin 51, March,
1894.
[3] Brown, Manual of Assaying, p. 24.
[4] Bulletin de l’Association des Chimistes de Sucrèrie, No. 2, pp. 7,
et seq.
[5] Proceedings of the Twelfth and Thirteenth Meetings of the Society
for the Promotion of Agricultural Science, p. 140.
[6] Chemical Division, U. S. Department of Agriculture, Bulletin 43, p.
341.
[7] Rapport adressé par le Comité des Stations agronomiques au sujet
des Methodes à suivre dans l’Analyse des Matières fertilisantes.
[8] Die Landwirtschaftlichen Versuchs-Stationen, Band 38, S. 303.
[9] Vid. op. cit. 6, p. 341.
[10] Zeitschrift für analytische Chemie, 1890, S. 390.
[11] Vid. op. cit. 6, p. 342.
[12] Chemisches Centralblatt, Band 2, S. 813.
[13] Transactions of the American Institute of Mining Engineers, Vol.
21, p. 165.
[14] Phosphates of America, p. 144.
[15] Vid. op. et loc. cit. 13.
[16] U. S. Geological Survey, Bulletin No. 47.
[17] Vid. op. et loc. cit. 14.
[18] Vid. op. et loc. cit. 13.
[19] Vid. op. cit. 14, p. 147.
[20] Transactions of the American Institute of Mining Engineers, Vol.
21, p. 168.
[21] Phosphates of America, p. 153.
[22] Die Landwirtschaftlichen Versuchs-Stationen, Band 34, S. 379.
[23] Zeitschrift für analytische Chemie, 1892, S. 383.
[24] Zeitschrift für angewandte Chemie, 1894, Ss. 679 und 701.
[25] Vid. op. cit. supra, 1889, p. 636.
[26] Vid. op. cit. 24, 1891, p. 3.
[27] Rapports presentèes au Congrès International de Chimie Appliqué,
Bruxelles, Août, 1894, p. 26.
[28] Vid. op. et loc. cit. 20.
[29] Le Stazioni Sperimentali Agrarie Italiane, Vol. 23, p. 31.
[30] Crookes’ Select Methods, p. 538.
[31] Journal of Analytical and Applied Chemistry, Vol. 5, p. 671. For
additional authorities on these methods consult Meyer and Wohlrab,
Zeitschrift für angewandte Chemie, 1891, Ss. 170 und 243. Gruber,
Zeitschrift für analytische Chemie, Band 30, S. 206. Shephard, Chemical
News, May 29, 1891, p. 251. Vögel, Zeitschrift für angewandte Chemie,
1891, Band 12, S. 357.
[32] Journal of the American Chemical Society, April, 1895.
[33] Vid. op. cit. 21, p. 150.
[34] Transactions of the American Institute of Mining Engineers, Vol.
21, p. 170.
[35] Vid. op. cit. supra, p. 173.
[36] Comptes rendus, Tome 54, p. 468.
[37] Crookes’ Select Methods, p. 500.
[38] For details of method see Fresenius quantitative Analysis.
[39] U. S. Department of Agriculture, Chemical Division, Bulletin 43,
p. 341.
[40] Letter to B. W. Kilgore, Reporter for Phosphoric Acid to the
Association of Official Agricultural Chemists.
[41] Die Landwirtschaftlichen Versuchs-Stationen, Band 38, S. 304.
[42] Communicated by Dr. Solberg.
[43] From the Official Swedish Methods; translated for the author by F.
W. Woll.
[44] Methoden van Onderzock aan de Rijkslandbouw-proefstations, 1893,
p. 4.
[45] Zeitschrift für analytische Chemie, 1893, S. 64.
[46] Journal of the American Chemical Society, Vol. 16.
[47] Zeitschrift für angewandte Chemie, 1894, S. 678.
[48] Journal für Landwirtschaft, Band 30, S. 23.
[49] Vid. op. cit. 47, p. 544.
[50] Vid. op. cit. 46, Vol. 16, p. 462.
[51] Vid. op. et loc. cit. supra.
[52] Die Agricultur-Chemische Versuchs-Station, Halle a/S., Ss. 56, et
seq.
[53] Chemische Industrie, 1890.
[54] Vid. op. et loc. cit. 52.
[55] Chemiker Zeitung, 1890, No. 75, S. 1246.
[56] Vid. op. cit. 43.
[57] Glaser, Zeitschrift für analytische Chemie, 24, 178
(1885). Laubheimer, Ibid, 25, 416 (1886). Müller, Tagebl. d.
Naturforscher-Vers. zu Wiesbaden, 1886, 365. Vögel, Chemiker
Zeitung, 1888, 85. Stutzer, Ibid, 492. Seifert, Ibid, 1390. v. Reis,
Zeitschrift für angewandte Chemie, 1888, 354. Loges, Reportorium
für analytische Chemie, 7, 85 (1887). Kassuer, Zeitschrift für
Nahrungsmitteluntersuchung und Hygiene, 2, 22 (1888). C. Müller, Die
Landwirtschaftlichen Versuchs-Stationen, 35, 438 (1888).
[58] L’Engrais, Tome 9, p. 928.
[59] Vid. op. et loc. cit. 44.
[60] Journal of the American Chemical Society, Vol. 16, p. 462.
[61] Die Landwirtschaftlichen Versuchs-Stationen, Band 41, S. 329.
[62] Journal of Analytical and Applied Chemistry, Vol. 5, p. 685.
[63] Vid. op. cit. supra, Vol. 3, p. 413.
[64] Zeitschrift für angewandte Chemie, 1886, S. 354.
[65] Vid. op. cit. 52, p. 61.
[66] Vid. op. cit. 55, Vol. 18, p. 1153.
[67] Chemiker Zeitung, 1894, No. 88, p. 1934.
[68] Op. cit. supra, 1892, p. 1471.
[69] Vid. op. cit. 60, p. 721.
[70] Zeitschrift für analytische Chemie, Band 29, S. 408.
[71] Mitteilungen der deutschen Landwirtschafts Gesellschaft, 1890-’91,
No. 11, S. 131.
[72] Zeitschrift für angewandte Chemie, 1888, S. 299.
[73] Vid. op. cit. 70, p. 409.
[74] Vid. op. cit. 72, 1890, p. 595.
[75] Vid. op. cit. 61, Tome 43, p. 183.
[76] Chemiker Zeitung, Band 18, S. 565.
[77] Chemical News, Vol. 1, p. 97.
[78] Archive für Wissenschaftliche Heilkunde, Band 4, S. 228.
[79] Journal für praktische Chemie, Band 70, S. 104.
[80] Sutton’s Volumetric Analysis, p. 237.
[81] Bulletin de la Société des Agriculteurs de France, 1876, p. 53.
[82] Manual Agenda des Fabricants de Sucre, 1889, p. 307.
[83] Journal of the American Chemical Society, Vol. 15, p. 382, and
Vol. 16, p. 278.
[84] Chemical News, Vol. 47, p. 127.
[85] American Chemical Journal, Vol. 11, p. 84.
[86] Vid. op. cit. 83, Vol. 16, p. 282.
[87] Bulletin 43, Chemical Division, U. S. Department of Agriculture,
p. 88.
[88] Vid. op. cit. supra, p. 91.
[89] Repertoire de Pharmacie, 1893, p. 153.
[90] Revue de Chimie Analytique Appliqué, 1893, p. 113.
[91] Chemiker Zeitung, 1894, S. 1533.
[92] Blair, Analysis of Iron and Steel, p. 95.
[93] Journal of Analytical and Applied Chemistry, Vol. 7, p. 108.
[94] Journal of the American Chemical Society, Vol. 17, p. 129.
[95] Vid. op. cit. 92, p. 99.
[96] Eighth Annual Report of Purdue University, p. 238.
[97] Receuil des Travaux Chimiques, Tome 12, pp. 1, et seq. Journal of
the Chemical Society (Abstracts), Vol. 64, p. 496.
[98] Zeitschrift für angewandte Chemie, 1891, Ss. 279, et seq.
[99] Le Stazioni Sperimentali Agrarie Italiane, February, 1891.
[100] Journal of the American Chemical Society, Vol. 17, p. 43.
[101] Vid. op. et loc. cit. supra.
[102] L’Engrais, Tome 10, p. 65.
[103] Journal of Analytical and Applied Chemistry, Vol. 5, p. 694.
Zeitschrift für analytische Chemie, Band 18, S. 99.
[104] Vid. op. cit. 92, p. 103.
[105] Journal of the Chemical Society (Abstracts), Vol. 58, p. 1343.
[106] Comptes rendus, Tome 114, p. 1189.
[107] Vid. op. cit. 24 and 25.
[108] Report communicated to author by W. G. Brown.
[109] Chemisches Centralblatt, 1895, p. 562.
[110] Wiley, Report on Fertilizers to Indiana State Board of
Agriculture, 1882.
[111] Proceedings of the Association of Official Agricultural
Chemists, Atlanta, 1884, p. 19. Report of Indiana State Board of
Agriculture, 1882, p. 230, and Proceedings of the Association of
Official Agricultural Chemists, Atlanta, 1884, p. 30. Huston and Jones.
(These gentlemen are now investigating all materials used as sources
of phosphoric acid in fertilizers; their results here quoted are from
unpublished work, and include but a small part of the work so far
done.) American Chemical Journal, March, 1884, p. 1. Proceedings of the
Association of Official Agricultural Chemists, Atlanta, 1884, p. 23.
Ibid, p. 28. Ibid, p. 38. Ibid, p. 45. U. S. Department of Agriculture,
Chemical Division, Bulletin No. 7, p. 18. Ibid, Bulletin No. 28, p.
171. Ibid, Bulletin No. 31, p. 100. Ibid, Bulletin No. 31, p. 99.
[112] Manuscript communication to author.
[113] Pamunky phosphate is the so-called “olive earth” found along the
Pamunky river, in Virginia. It is almost all precipitated iron and
aluminum phosphates, and the product is peculiar in that the iron is
almost all in the ferrous condition.
[114] In the work of T. S. Gladding only fifty cubic centimeters of
citrate were used.
[115] In the work of T. S. Gladding only fifty cubic centimeters of
citrate were used.
[116] Zeitschrift für analytische Chemie, Band 10, S. 133.
[117] Lehrbuch der Düngerfabrication.
[118] Bulletin 54, Purdue Agricultural Experiment Station, p. 4.
[119] Vid. op. cit. supra, p. 7.
[120] Runyan and Wiley; Paper presented to Washington Section of the
American Chemical Society, April 11, 1895.
[121] Bulletin 38, Chemical Division, U. S. Department of Agriculture,
p. 16.
[122] Chemiker Zeitung, 1895, S. 553.
[123] Die Käuflichen Dungermittel Stoffe, dritte Auflage, 1889.
[124] Wyatt, Phosphates of America, p. 128.