Air bubbles in wet mounts can also have beneficial effects. They may supply ciliates and other organisms with oxygen.

Alcohol can be used for fixing specimens, but is not commonly used for fixing bacteria.

A wet mount uses a liquid mounting medium, in most cases water.

Why is refractive index of mounting media important?

Why use phosphate buffer when making a permanent slide of cheek cells?

And yet again it’s time to answer some reader questions!

In this post I’d like to address some of the search queries that people typed to find this web site.