90 DISSOCIATING FLUIDS. 



The tissues must be examined in this fluid, and cannot be 

 preserved. If water is added to the dissociated tissues, they 

 are soon dissolved. 



(xi.) SCHULZE'S MACERATING MIXTURE. 



Sections are placed in Nitric Acid sp. gr. 1-2, and about 

 2 or 3 per cent, of Chlorate of Potassium is added. 



If the fluid be not heated, the sections should remain in it 

 for several hours ; but if the fluid be gently warmed until gas 

 is given off freely, the result will be attained in a few 

 seconds. 



The tissue is washed in water, transferred to a slide, and 

 the disintegration completed with needles. 



Used in Botanical Histology for dissolving the middle 

 lamella in vertical sections. 



