Emma the Curious 🧐 on Nostr: VII. All microscopes must be handled with care. Hold the lenses by the rim with thumb ...

VII. All microscopes must be handled with care. Hold the lenses by the rim with thumb and forefinger; never touch the glass with the hand. If apparatus is in any way out of order, at once inform the professor of the fact.

VIII. After using the microscope, return it to its box. Return scalpels and dissecting needles to the professor’s table.

IX. Scalpels and needles are for scientific use; a prodding of the table or a neighbor with these is not one of their recognized and legitimate functions.