54 Step 1. Get a slide of the letter “e” from the tray on the side counter. This an example of a prepared slide, a slide that is already made for you and meant to be reused. (i.e., don’t dispose of it, please return it to the tray when you are finished!Step 2. Use a piece of lens paper to clean any smudges (fingerprints, grease, etc.) off the slide.
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