Appendix £23 



(262) Our theme Is exhausted with the discussion of the 

 various abnarmal tissue forms, which led us from simple 

 hjrpoplasias to highly organized prosoplasmas, since the 

 many forms, furnishing information ooncerning abnormal 

 cyto'Xogioai struotures, and, further, all phenomena of 

 degeneration and all mioro-ohemicnl conditions, varying 

 from the normal, must remain excluded from our presenta- 

 tion of this suhjjeot. 



An active interest in oyttlogy has brought to matur- 

 ity in the last decade, a quantity of zoological and botaa- 

 loal publications, many of which either consider abnormp.1 

 structural conditions as well as normal ones, or treat of 

 the former exclusively, ' Of the zoologists and anatomists, 

 I till name only Arnold, Cornil, Denys,,Hansemann, 0» 

 Hartwlg, Hass, Schottlfinder and Stroehe , Instead of an 

 exhaustive survey of the botanical literature, I will give 

 belcw only a small selection,- especially in order to in- 

 dicate the various questions, with which attempts have 

 been made to approach the problems of "pathological cy- 

 tology?, 



^ Citations of literature in 0, Hartwig, Ueb. p&thol- 

 og, Verand, a. Kerntellungsprozesses infolge experimentel- 

 ler Eingrlffe, Pestsohr* f. Virohow, Berlin, 1891, Bd, 1, 

 p. 19t. Albrecht, Physik« Pragen der Zellpathologie , ' 

 Brgebn. d. Allg. Path. u. s. w.; 1901, Bd, VI, p. 900, 

 1902, Bd» VII, p. 783. Zlegler, Allgem. Pathologic . Jena, 

 1901, p, 300 and places given. 



^ Contributions to the "pathological cytology" «f 

 plants *e»e furnished - besides by many others - by Andrews, 

 Wirkung der Centfifugalkraft auf Pfl. Pringsh. Jahrb. f. 

 wiss. Bot., 1902, Bd. XXXVIII, p. 1. Blazek, Elnfl. von 

 Bensoldampfen auf pflanzliche Zellteilung. Abhandl. bohm. 

 Akad,, 1902 Bd. XI, Nr, 17. Buscalionl, Osservaz, ericercne 

 sulla cellula vegetale. Ann. R. 1st. Bot, Roma, 1698, Vol. 

 VII, p. 255. Cavara, Ipertrofie ed anomalie nucleari etc. • 

 Riv, Patol, veg., 1896, Vol. V, p. 238, 2)angeard et Armand, 

 Observ. de Biol, cellulaire. Le Botaniste, T. V., p. 269. 

 Dangeard, Sur le caryophysems. C. R, Acad. So. Paris, 1902, 

 T. CZXXIV, p. 1365 (compare also Mem. b. 1. paras, du 

 noyau et du protopl. Le Botaniste, T. IV, p. 199). Geras- 

 simow, Die kernlosen Zellen der Konjugaten. Bull. Soc. Imp, 

 Natur; Moscou, 1892, p. 109. Grant, Multinucleated condi- 

 tion of the veget. cell etc. Transact. Proc. Bot. Soc. 

 Edinburgh, Vol. XVI, pt. 1, p.„38. Heidenhain, Einiges 

 ueber d. sogen. ProtoplaSttastpomungen. Sitzungsber. Mediz. 

 Phys. Ges, Wurzburg, 1897, p. 116, Hottes, Ueb. d. Einfl. 

 von Bruckwirkungen auf die Wurzeln von Viola Faba . Diss. 

 Bonn. 1901. Huie, Changes in the Cell-organs of Drosera 

 rotundif. Quart. J, Mior. So. 1897, Vol. XXXIX. (Ann. of 

 Bot., 1897, -Vol. XII, p» 560), and 1899, Vol. XLII, p.203. 

 Juel, Kernteil in d. Pollenmutterzellen v. Hemercoallis u,- 

 s. f. Pringshelm's Jahrb. f. wiss. Bot., 1897, M. XXX, 

 p. 205. Klebs, Beitr. z. Phys. d. Pflanzelle, Tubingen 

 Untersueh., 1888, Bd, II, p; ^89, Kohl, Z. Phys. des 

 Zellkernes. Bot. Cbl., 1897, Bd. LXXII, p. 168. Magnus, 

 W, , Studien an der endotrophen Mycorrhiza ypn Jleottla 



