Method II 23 



8. To mount, prepare a clean cover-glass, then drain the 

 slide, and rinse off the surplus oil by merely dipping it into 

 xylol; lay flat, place a small drop of colophonium (E) on the 

 sections, and put on the cover, avoiding the formation of air 

 bubbles. The rinsing in xylol may be omitted. 



Two or three slides may be carried along simultaneously. 

 But if it is necessary to make quite a number of preparations, it 

 will both save time and be more economic with the fluids to 

 have the stain, the aniline-alcohol, and the cajeput oil in jars of 

 suitable size. The stain may be kept warm by working with 

 the jar upon a paraffin bath, e.g., raised to about 90" C. • 



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