1627. Fromondi (L.), “Meteorologicum ...” (See reference to Fromondi infra at 1781 date. He employed heart pulsations to calculate the distance of thunder.)
1630. Longinus (Cæsar), “Trinium magicum ...”
1631. Kœnio (H.), “Fulminum theoria meteor. ...”
1632. Remmelinus (Joannes L. U.), “Instrumentum magneticum ...”
1637. Ward (S.), “Magnetis reductorium ...” (See also his “Wonders of the loadstone,” published in 1640.)
1638. Fludd (Robert), “Philosophia Moysaica ...”
1641. Fabricius (Hildanus), “Observationum et curationum ...”
1643. Servius (Petrus), “Dissertatio de Unguento ...”
1645. Blæu (G. and J.), “Théatre du Monde.”
1646. Henricus (Regius), “Fundamenta physices.” (See also his “Philosophia naturalis,” published in 1654.)