Fig. 3. Ectromelia inclusion surrounded by particles resembling mature virus. The 

 interiors, instead of being hollow, show bars, dumbbells, and double circles (Courtesy 

 Drs. Gaylord and Melnick, 1953) (Magnification: X 16,000). 



Fig. 4. Intracytoplasmic vaccinia virus composed of characteristic granular material 

 with an eccentric nucleus-like body (Courtesy Dr. Councilman Morgan. 1954) 

 (Magnification: X 74,000). 



