Systema Saturnium. . Add to clipboard GB 2014 WS-01-BUS-HH/2/27 Item 1659 Part of Westminster School's Archive and Collections Huygens, Christiaan, 1629-1695
Theoremata de quadr.hyperboles. . etc Add to clipboard GB 2014 WS-01-BUS-HH/3/23 Item 1651 Part of Westminster School's Archive and Collections Huygens, Christiaan, 1629-1695