Contents

Acknowledgements
Foreword
Luís Saraiva

. The Practice of Mathematics in Portugal: Problems and Methods
Henrique Leitão

Historiography of Mathematics in Portugal
Luís Saraiva

Preliminary Remarks on Judah Ben Verga's Contributious to Astronomy
Bernard Goldstein

Abraham Zacut's Contribution to Navigation
José Chabás

Mathematics in the Líber de Tríplici Motu (1509) of Alvarus Thomas of Lisbon
Edith Sylla
Nunes and Clavius
Eberhard Knobloch

Pedro Nunes'Nonius
António Estácio dos Reis

Astronomy and Cosmography 1561-1625. Different aspects of the activities of Spanish and Portuguese mathematicians and cosmographers
Victor Navarro Brotóns

Nautical Training and Ship Command in Portugal (l5th to 19th centuries)
Francisco Contente Domingues

The teaching of Mathematics in thc Jesuit Colleges of Portugal, from 1640 to Pombal
Ugo Baldini

O Retorno do Cometa de 1682 e os Trabalhos da Juventude de José Monteiro da Rocha
Carlos Ziller Camenietzki and Fábio Mendonça Pedrosa

José Anastácio da Cunha: an assessment
João Queiró

Necessity and Contingency in Natural Philosophy during the l8th century, Da Cunha's Position
Patrícia Radelet de Grave

Essai sur lês Príncipes de Mécanique, by josé Anastácio da Cunha, French translation by Patrícia Radelet de Grave and Luís Saraiva

António A. Monteiro, on the Practice of Mathematics
Eduardo Ortiz

Portuguese Mathematical Journals: Some Aspects of (almost) Periodical Research Publications
José Francisco Rodrigues