Institutionum astronomicarum libri ii Add to clipboard GB 2014 WS-01-BUS-JJ/4/16 Item 1676 Part of Westminster School's Archive and Collections Mercator, Nicolaus, 1620-1687
Logarithmotechnia. . Add to clipboard GB 2014 WS-01-BUS-HH/2/11 Item 1668 Part of Westminster School's Archive and Collections Mercator, Nicolaus, 1620-1687