wunder · Library

Chapter X. a Drop of Blood.--What Does the Blood Contain? How

First Book in Physiology and Hygiene · John Harvey Kellogg — chapter 36 of 53 · ~19 words · public domain

many kinds of blood corpuscles are there? What work is done for the body by each kind of corpuscles?

First Book in Physiology and Hygiene · The Wunder Library — complete classics, free to read, with narration.