246 BULLETIN OF THE BUSSEY INSTITUTION. 
ts 
Soars 
it: 
12, 
13. 
14. 
15. 
16. 
17. 
18. 
19. 
20. 
21. 
22. 
23. 
24. 
25. 
26. 
27. 
28. 
REFERENCE LIST OF THE AUTHORITIES CITED IN THE 
LARGE TABLE, 
von Werneck, cited by Hartig in his Forstliches Lexicon, Berlin, 1834, p. 641. [v. Wer- 
neck’s original paper is in Hermbstzdt’s Archiv der Agrikultur-Chemie, Berlin, 
1812, 6. p. 62 or 92.] 
Henneberg’s Journal fiir Landwirthschaft. 
Gueymard, Comptes Rendus, 1863, 56. 772. Besides his own determinations, Guey- 
mard has given in this place, with due credit, a number of Berthier’s results, and 
a few that have been obtained by other observers. 
Berthier, Annales de Chimie et de Physique, 1826, 32. 248, and further, his Traité des 
Essais par la voie séche, Paris, 1834, 1. p. 259, et seq. 
Sprengel, Erdmann’s Journal fiir tech. und ck. Chemie, 1832, 13. pp. 384, 389; and 
Journal fiir praktische Chemie, 1834, 1. 159. 
Sprengel, C., in his Chemie fiir Landwirthe, Géttingen 1832, 2, 384, et seg. Only the 
ash determinations of Sprengel have been cited. His analyses of the ashes are 
known to be untrustworthy: 
Johnson and Sendtner, Annalen der Chemie und Pharmacie, 1855, 95. 234-241. 
Rothe; Bericht der Naturhistorischen Vereins in Augsburg, 1856, 9. 29. 
Zedeler, Annalen der Chemie und Pharmacie, 1851, 78. 351. 
Cited by Leuchs, E. F., in his Der potaschen-Fabrikant, Niirnberg 2te Auflage, 1844, 
pp. 15-18. According to Leuchs, his figures depend upon the results of Wiegleb, 
Kirwan, Wildenhayn, J.C. Leuchs, Reesig, and other observers. The same figures 
are given by Hermann, H. G., in his Praktische Anweisung zur Bereitung der 
Potasche, Quedlinburg and Leipzig, 1835, p. 3. as ‘‘taken from the statements of 
various authors;’’ and many of them by Chevallier, in Dingler’s polytech. Journal . 
1833, 48. 380, who states that the figures of his tables are arithmetical means ob- 
tained from the results of Kirwan, Vauquelin and Pertuis. They have been re- 
peated by (40) Hohenstein also. 
Margold, Knop’s Lehrbuch der Agricultur-Chemie, 1868, 1. 714. 
Gueymard, Comptes Rendus, 1864, 59. 992. In this memoir G. reports ‘ phosphates 
of lime and iron.” I have taken 46% of his figures indicating these mixed phos- 
phates, in order to obtain the approximative estimates of phosphoric acid that are 
given in the table. 
Malaguti and Durocher, Annales de Chimie et de Physique, 1858, 54, 257. 
Fresenius and Will, Annalen der Chemie und Pharmacie, 1844, 50, 393. 
C. Erdmann, Annalen der Chemie und Pharmacie, 1855, 94. 255. 
Pissis, Annales de Chimie, 1801, 38. 91. 
Richardson, Annalen der Chemie und Pharmacie, 1848, 6'7. 377. 
Fresenius’s pupils, Annalen der Chemie und Pharmacie, 1857, 101 pp. 225-231. 
Simon, C. F. W., Die Fabrikation der russichen Pottasche in Deutschland. Quedlin- 
burg and Leipzig 1845, p. 6. According to Simon, his results are the arithmetical | 
means of repeated original trials with the several kinds of wood. <A large quantity 
of the wood to be tested was used as fuel to feed the calcining furnaces at his works. 
The ashes obtained were strongly ignited, and then leached by themselves. 
Brix, cited by Kerl B., in his Handbuch der Hiittenkunde, Freiberg, 1861, 1. 247. 
Zeyer, Liebig and Kopp’s Jahresbericht, 14. 771. 
Hambright, American Journal of Pharmacy, 1863, 35. 200. 
Hruschauer, Annalen der Chemie und Pharmacie, 1846, 59. pp. 201-206. 
Wiegleb, cited by John in his Ernaihrung der Pflanzen, pp. 23, 24. 
John, J. F., in his work Ueber die Ernaihrung der Pflanzen, Berlin, 1819, pp. 59, 60, 
65, 139-142. 
Sprengel, Erdmann’s Journ. tech. und ck. Chemie, 1829, 5. 135, 292. 
Kirwan, Transactions Royal Irish Academy, 1789, 3. pp. 35, 36. Most of the figures in 
Kirwan’s memoir seem to have been derived from a pamphlet published in France 
by the Administration of powder and saltpetre. I have omitted those that were 
manifestly duplications of (53) Pertuis’s citations. 
Wicke, Henneberg’s Journal fiir Landwirthschaft, 1862, '7. 143, et seq. 
