The visual stimulus for saccadic eye movements in human observers 7 – 21
John M Findlay
Depicted angle of forms and perception of line drawings 23 – 29
Dale W Kaess, Jan B Deregowski
Evidence for the role of attentive fields in masking 31 – 36
Alexander W Pressey, Alexander E Wilson, Dan W Harper
The oblique effect of stimulus identification considered with respect to two classes of oblique effects 37 – 46
Edward A Essock
Perception of relative velocity: a revision of the hypothesis of relational determination 47 – 60
William Epstein, William J Cody
Colour and brightness preferences in the lizard Anolis carolinensis 61 – 68
P E Hodgkinson, A W Still
The computation of binocular edges 69 – 86
John E W Mayhew, John P Frisby
Brunelleschi's perspectives reconsidered 87 – 99
John A Lynes
Autokinesis and sight of the body 101 – 102
Martin Crawshaw, Graham Storrs, Brian Craske
Coloured illusory triangles due to assimilation 103 – 107
Colin Ware
Comment on: "Sensory conditions for the occurrence of the neon spreading illusion" 109
Theodore E Parks
Reply to Parks 111 – 112
Harrie F J M Tuijl, Charles M M de Weert
An early ambiguous sculpture? 113 – 114
Thomas Lorscheid, Klaus Hofmeister
The three faces of Edgar Rubin 113 – 114
Alan Corstall
Solution to Competition Crossword 118
Reviews 119 – 122
