14 



Methods in Plant Histology 



It is convenient to have two pairs of forceps, a strong pair for 

 handling slides and a delicate pair for handling covers. If there is 

 to be only one pair, they must be strong enough for the slides but 



FIG. 10. Paraffin bath. 



not too clumsy for covers. Curved forceps are not necessary; the 

 cover-glass forceps, used by bacteriologists in staining on the cover, 

 are of no use in botanical work. 



FIG. 11. Turntable. 



Stender dishes are very generally used in staining on the slide. 

 The form shown in Fig. 12, A, about 60X90 mm., is in quite general 

 use. Some prefer the Coplin jar, shown in Fig. 12, B. The latter 

 is more troublesome to clean, but requires less of the reagent. Many 

 other forms are on the market. When large numbers of slides of the 

 same kind are to be stained at one time, small battery jars, holding 

 about a liter, may be used. In this case, it is well to have a rack, 



