Name : Aron Simis Title: Remarks on Cremona transformations Abstract: We will mention some aspects of this classical, in connection with new results. -----------------------------******------------------------------ Aron Simis e-mail: aron@dmat.ufpe.br Departamento de Matematica Fax (office):5581-3271-1833 Centro de Ciencias Exatas Fax (home): 5571-379-0432 Universidade Federal de Pernambuco Mobile: 5581-9948-6752 50740-540 Recife, PE Home phone: 5571-379-5286 Brasil Dept. phone: 5581-3271-8410 Ext. 229