HARVEY, William (1578-1657). Exercitationes duae anatomicae de circulatione sanguinis. Rotterdam: Arnold Leers, 1649. 12o (118 x 67 mm). Collation: A-F12. 72 leaves. Contemporary vellum over pasteboard (front cover stained). Keynes Harvey 32; NLM/Krivatsy 5340; Waller 4116; Norman 1010.
HARVEY, William (1578-1657). Exercitationes duae anatomicae de circulatione sanguinis. Rotterdam: Arnold Leers, 1649. 12o (118 x 67 mm). Collation: A-F12. 72 leaves. Contemporary vellum over pasteboard (front cover stained). Keynes Harvey 32; NLM/Krivatsy 5340; Waller 4116; Norman 1010.

Details
HARVEY, William (1578-1657). Exercitationes duae anatomicae de circulatione sanguinis. Rotterdam: Arnold Leers, 1649. 12o (118 x 67 mm). Collation: A-F12. 72 leaves. Contemporary vellum over pasteboard (front cover stained). Keynes Harvey 32; NLM/Krivatsy 5340; Waller 4116; Norman 1010.

[Bound with:]

HARVEY, William. Exercitatio anatomica de motu cordis & sanguinis. - Zacharias SYLVIUS (1508-1664). Prefatio. - Jacobus de BACK (1593/4-1658). Dissertatio de corde. Rotterdam: Arnold Leers, 1648. 12o. Collation: *12 **8 A-I12; s2 A-I12 K8 (K7,8 blank). 92, 118 leaves. Engraved title and two full-page engraved illustrations. (Some browning, and bound in reverse order.) Heirs of Hippocrates 421; Keynes Harvey 7; NLM/Krivatsy 5332; Osler 695; Waller 4091; Wellcome III, p. 219; Norman 1007.

Harvey's two essays Exercitationes duae anatomicae de circulatione sanguinis were written in response to the noted Parisian anatomist Jean Riolan (1580-1657), the best-known and most persistent critic of Harvey's theory of the circulation of the blood. Although he had previously remained silent in the face of criticism, when Riolan published a rival theory of circulation, Harvey refuted it in detail and also answered Descartes' arguments against his claims about the movements of the heart. Called by Keynes "one of [Harvey's] major contributions to medical science" the Exercitationes duae were published in two editions in 1649, the present Rotterdam edition and a Cambridge edition by Roger Daniels (Wing H-1087); no priority has been established. The only other separate edition of the work was published in Paris in 1630; otherwise it was printed only as an appendix to editions of De motu cordis.

The Rotterdam 1648 edition of De motu cordis, the seventh edition of the work, was the first of four published by Arnold Leers. It included a preface by Zachariah Wood and James de Back's Dissertatio de corde, a defense of Harvey written in 1647.