ALTHOUGH widely used in plankton studies, the Hensen-Stempel pipette does not seem to have been employed for investigations of the microbenthos. Clearly, its use or potential use is important ...

Construct a simple hydrometer that you can use to compare the densities of different solutions. Cut the tapered tip off of the pipet. The opening needs to be large enough so you can pour sand into it.

In Canada, the handling or storing of Risk Group 2 (RG2), RG3, and RG4 human pathogens or toxins is regulated by the Public Health Agency of Canada (PHAC) under the Human Pathogens and Toxins Act ...