Item VRU/1/10/7 - The Pincushion Grid Illusion

Extent: 1 folder

Paper: 'The "Pincushion Grid" Illusion' by Roy Markham, (6 copies) one stamped 6 Jul 1977. Letter from RM to The Editors, 'Science', the American Association for the Advancement of Science, Washington, USA, re enclosing a note for publication (see above), 29 Jun 1977. Postcard from Philip H Abelson, Ed., 'Science', re response to 'technical comments', 21 Jul 1977. Letter from RM to Dr Abelson, Ed., 'Science', re query over response to previous letter, 24 Oct 1977. Letter to RM from Caitilin Gordon, Assist. Ed. of' 'Science', re Markham's letter and comments (paper, see above) on R A Schachar's "The Pincushion Grid Illusion", which they were not able to publish but sent on to Schachar, 1 Nov 1977. 1 transparency, 2 photocopies and 6 prints of Fig. 1 mentioned in Markham's letter, from the cover of Science No. 4237?