Figure 215 (upper) and 216 (higher magnification, lower) from Chapter 6 (Golgi Apparatus) of 'The Cell, 2nd Ed.' by Don W. Fawcett M.D. Granules of the eosinophilic myelocyte from rat bone marrow stained by the cytochemical reaction for peroxidase. In the lower panel, reaction product is evident in the cisternae of the Golgi, in condensing vacuoles and immature granules. Image from Bainton and Farquhar (1970) J. Cell Biol. 45:54-73, reprinted with permission. A PDF copy of the accompanying chapter is available on the ASCB’s BioEDUCATE website.