Immune Electron Microscopy of Not Cell‐bound Antigen of Mycoplasma Pneumoniae

Specific immune precipitates of not cell‐bound antigen of Mycoplasma pneumoniae have been examined in the electron microscope using negative staining. The precipitates were found to contain aggregates of;lobular elements measuring 10–100 nm. The results provide evidence that the small globular elements are formed during the growth of M. pneumoniae in broth culture.