A<unk>  showing the schizont stage of Plasmodium vivax malaria parasite<unk> , also known as<unk> 's stain, is used in microscopy for staining blood smears. It is generally used to differentiate between and identify white blood cells, malaria parasites, and trypanosomas. It is based on a methanolic mixture of "polychromed" methylene blue (i.e. demethylated into various azures) and eosin. The methanolic stock solution is stable and also serves the purpose of directly fixing the smear eliminating a prefixing step. If a working solution is made by dilution with an aqueous buffer, the resulting mixture is very unstable and cannot be used for long.<unk>  is named after its inventor, the Scottish pathologist William Boog<unk> . It is a version of the Romanowsky stain, and is thus similar to and partially replaceable by Giemsa stain, Jenner's stain, and Wright's stain.
Leishman stain
Giemsa stain
Phosphotungstic acid-haematoxylin stain
Field stain
Carbon stain
Auramine phenol stain
Grocott's methenamine silver stain
Romanowsky stain