Mounting 



PARAFFIN SECTIONS 



117 



Fig. 68. Mounting the dry ribbon. 



It will have been apparent to the worker 

 from the moment that he started cutting 

 the sections that the}^ are not absolutely 

 flat. They may be slightly crinkled, or 

 slightly distorted, and must be flattened 

 by being warmed on water heated just be- 

 low the melting point of the wax. Some 

 people place this water on the slide and 

 then add the sections to it, but the writer 

 prefers to lay the ribbons on the slide as 

 shown in Fig. 08. This is not nearly so 

 easy as it looks. Two brushes must be 



moistened with the tongue just enough 

 to bring the hairs to a point. The two 

 moist points are then delicately touched 

 down (too much pressure will cause the 

 ribbon to adhere to the paper) on each 

 end of the selected piece of section. This 

 l)iece is tluMi lifted as shown in the illus- 

 tration and placed on the shde. When a 

 sufficient number have been accumulated 

 the slide is then picked up carefully, re- 

 versed, and laid 'on top of the last three 

 fingers of the left hand as shown in Fig. 69. 



