Maul, H. G. : Bonis and Joint Lesions or Yaws.] [Puil. Joubn. Sol, XIII, B, No. 2. 



Fig. 1. No bone regeneration after six weeks of Castellani treatment. Case S. 



Fig. 2. Regeneration of bone of the same case after salvarsan. Case 8. 



PLATE V. 



