Paper by Adolpho Lutz published in 1930 in Memórias do Instituto Oswaldo Cruz (v. 24, fasc. 4, p.195-222 in Portuguese and p.223-49 in English). Received for publication on August 18, 1930, the paper includes four engraved plates (LXIV to LXVII), with photographs by J. Pinto and drawings by Raymundo Honorio, P. Sandig, and Antônio Pugas. [E.N.]