Jerónimo Cortés (c. 1560 - c. 1611) was a Spanish mathematician, astronomer, naturalist and Valencian compiler. Works Many of Cortés works involved compilations of knowledge and writings of other authors. Some works include: Tratado del cómputo por la mano (1591) Compendio de reglas breves (1594) Lunario perpetuo (1594) Fisonomía natural y varios secretos de naturaleza (1597). Aritmética práctica (1604) Libro y tratado de los animales terrestres y volátiles (1613) References Further reading Vol. I. Vol. II-III. Vol. IV. Vol. I. Vol. II. 17th-century Spanish mathematicians 17th-century Spanish astronomers Spanish naturalists 1611 deaths Year of birth uncertain 16th-century Spanish mathematicians