Plate, figures 1-4 and 7-8 showing mirrors, stereoscopes, and pseudoscopes by E Berker Figures 1-4 and 7-8 showing diagrams of arrangements of mirrors and images, stereoscopes, a pseudoscope, and plane mirrors. Also includes an unpublished illustration, possibly an early draft of figure 7. Subject: Physiology Published in Philosophical Transactions as 'The Bakerian Lecture.— Contributions to the physiology of vision.— Part the second. On some remarkable, and hitherto unobserved, phenomena of binocular vision (continued)'. Received and read by the Royal Society on 15 January 1852. January 1852