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General Laboratory Aids 



Labeling and Cleaning Slides 



If using ordinary slide labels, which must be glued on with moisture, 

 processed slides should be cleaned; otherwise the labels will eventtially 

 loosen from the glass. Dip the slides (when moimtant is thoroughly hard- 

 ened) in water to ^vhich has been added a small amount of ammonia 

 and cleanser, such as Bon Ami (glass cleaner may be stibstituted). Wipe 

 dry, and paste on label. 



A simpler method for labeling is provided by the Professional Tape 

 Con] puny, Inc., 5^5 Burlington, Riverside, Illinois. Their labels are 

 called "Time Microscopic Slide Labels" and are applied by pres- 

 sure only. They are manufactured in a standard thickness, size I X i 

 inch, and a so-called "tissue-high" thickness, size | X s ^^^^ f X 8 inch. 

 The latter is used as an end label protecting the cover glass from stick- 

 ing to any object laid upon it. 



All slide labels should contain complete information, name or num- 

 ber of tissue, section thickness, stain and date, and possibly fixative. 



Mounting can be untidy, and some of the resin may ooze over the 

 cover glass. If this happens, when completely dry, scrape off excess resin 

 with a razor blade, taking care not to chip or break the cover. It is not 

 practical, however, to clean away the resin too close to the cover glass; 

 in fact, a small band of it may be left to protect the co\er from chipping 

 or being caught against an object. 



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