Figure 3-5, Electron Micrograph of Mitochondria in Human Spermato- 

 gonium, showing cristae arranged in parallel and completely transversing the 

 organelle. (From Selby, C. C, 1959. "Electron Microscopy: Techniques and 

 Applications in Cytology," in "Analytical Cytology," R. C. Mellors (Ed.), 

 2nd ed., McGraw-Hill Book Co., Inc., New York,^N. Y., Fig. 4-lOC, p. 300. 

 Electron micrograph by Dr. D. W. Fawcett, Harvard Medical School.) 





Figure 3-6. Electron Micrograph of Mitochondria in Interstitial Cell of 

 the Opossum Testis. The cristae are short, irregularly oriented projections 

 from the inner mitochondrial membrane. (From Selby. C. C 1959. "Elec- 

 tron Microscopy: Techniques and Applications in Cytology," in "Analytical 

 Cytology," R. C. Mellors (Ed.), 2nd ed., McGraw-Hill Book Co., Inc., New 

 York, N. Y., Fig. 4-lOB, p. 300. Electron micrograph by Dr. D. W. Fawcett, 

 Harvard Medical School.) 



30 / CHAPTER 3 



