

78 MISSOURI BOTANICAL GARDEN. 



Pfaff, C. H. : Ueber die Gallussaure und den Gerbstoff. 



Schweigg. Journ. lii, pag. 324-37. — Mentions tannoids as aconstit- 

 uent of the plant-body in general; on the acid. gall, in the fruit of 

 Coffea arabica L, 



Pfaundler. 



See Hlasiwetz. 



Pfeffer, W. : Osmotische Untersuchungen, Leipzig, 1877. 



Pfeffer, W. : Pflanzenphysiologie, Leipzig, 1881, vol. i, 

 pag. 305-06, 343. 



Pfeffer, W. : Ueb. Auf nahme von Anilinfarben in lebenden 

 Z ell en. 



Unters. Tiib. ii., pag. 187, etc. 



Phipson: Sur quelques substances extraites du fruit du 

 Juglans regia. 



C. R. lxix, pag. 1372, 1869. 



Phipson, J. L. : On some substances obtained from the 

 root of the strawberry. 



Chemical News, xxxviii, pag. 135, 1882. 



Pick, H. : Bot. Centralblatt, vol. xvi, pag. 281-84, 



314-18, 343-47, 375-83. 

 Plenk, J. J. : Physiologic und Pathologic der Pflanzen, 



1795, pag. 15. 



Ascribes no role for the tannin. 



Plinius: Historia naturalis, lib. xxxiv, cap. 26. 

 Pollaci: Berichte, 1874, pag. 360. 

 Pouch et, A. G. : Dosage du tannin. 



Moniteur scientiflque, ser. 3, vol. vi, pag. 1130, 1876. 



Poulsen, V. A.: Botanisk Mikrokemi, ed. ii, 1891, pag. 



71; German transl. (of first ed.) by C. Miiller, Cassel, 



1881, pag. 69; Engl, transl, by Wm. Trelease, Boston, 



1884, pag. 9, 13, 20, 33, 60, 90, 106. 

 Preusse, C. : Ueber das angebliche Vorkommen von Brenz- 



catechin in Pflanzen. 



Zeitschr. physiol. Chem. vol. ii, pag. 324, 1881. 



Procter: Berichte, 1874, pag. 598. 



Procter, H. R. : On the estimation of tannin by Miintz and 

 Bamspacher's method. 



Chem. News, xxxiii, pag. 245, 1876. 



18 



