Other
World of Teaching: White Blood Corpuscles (Power Point)
This is an excellent PowerPoint presentation, with lots of graphics, on white blood cells. It clearly explains the different types of white blood cells and how they are formed.
University of Kansas Medical Center
University of Kansas Medical Center: Blood & Bone Marrow
A collection of specimen samples showing bone marrow and other blood smears.
Other
Okccc: Basophil
The Oaklahoma City Community College offers a simple labeled diagram of the basophil cell.