246 



University of California Publications. 



[Botany 



Bordeaux red. 



congo red. 



ruthenium red. 



neutral red. 



rubin G., Bausch & Lomb. 



rubin S. 



erythrosin. 



eosin. 



carmine, aqueous. 



Schneider 's aceto-carmine. 



Hover's picro-carmine. 



Woodward's carmire. 



iodine green, 

 solid green, 

 light green. 



LIST OF STAINS. 



Bed and Orange Stains. 



Heidenhain's iron haematoxylin. 

 Ehrlich 's haematoxylin. 

 Bohmer's haematoxylin. 

 Delafield 's haematoxylin. 

 Mayer's acid haemalum. 

 fuchsin, aqueous, and alcoholic. 

 Ziel's carbol fuchsin. 

 safranin. 

 sudan III. 

 orseille G., Bausch & Lomb. 



peruvm. 

 orange G. 



Green Stains. 



aniline green, 

 coerulein S. 



Blue Stains. 

 tolnidin blue, Chas. C. Eiedy, S. F. blue de Lyon. 



china blue. 



wasserblau. 



victoriablau. 



methyl blue. 



methylene blue, aqueous. 



Loeffler's methylene blue. 



Brown and Black Stains. 

 Bismarck brown. wollschwarz, Chas. C. Kiedy, S. F 



schwarzbraun. nuclear black. 



thionin, Queen & Co., Phila. 



cyanin. 



aniline blue. 



blue lumiere, Chas. C. Eiedy, S. F. 



alizarinblau. 



crystal violet, 

 methyl violet. 

 Hofmann's violet, 

 saure violet. 



Violet Stains. 



gentian violet, 

 methyl violet 6 B. 

 methyl violet 5 B. 

 dahlia. 



The method of attacking the problem was first to select from 

 the abundance of material a species with well defined cell-organs 

 to use as a basis of comparison, and also to serve for testing the 

 action of various killing agents and stains. The nucleus was se- 

 lected as the first object for demonstration, and for this purpose 

 study was begun on the living plant. After careful investigation 

 to ascertain what could be seen by the aid of the highest magni- 

 fication of the microscope, stains were run under the cover glass 



