Volume 1 / Part 7 — Emergency Magnifying Glass
Reading edition
Loop Inclosing a Drop of Water
When in need of a microscope in the study of botany, one may be made in the following manner: Bend a small wire or the stem of a leaf so as to form a small loop not larger than the ordinary drop of water. When this is done place a drop of clear water in the loop and the microscope is complete. This temporary device will prove valuable where a strong magnifying glass is not at hand.
Contributed by Arthur E. Joerin, Paris, France.