N.B.: References to Papers appearing in collected papers Concepts and Mechanisms of Perception (1974, London: Duckworth) are referred to as: {C&M of P No.-- Pp.--.}

1 Recovery from Early Blindness: A Case Study. With Jean Wallace. (l963) Exp. Soc. Monogr. No.2. Cambridge: Heffers. {C&M of P [3]. Pp. 65-129}.

2 Ross, H.E. and Gregory, R.L. (l970) "Weight illusions and weight discrimination- a revised hypothesis." Quart J exp Psychol, 22, 2, 318-328. {C&MofP [13] Pp. 240-252}.

3 Warren, R.M. and Gregory, R.L. (l958) "An auditory analogue of the visual reversible figure." Amer J Psychol, 71, 6l2-3. {C&MofP [20] Pp. 290-291}

4 Gregory, R.L. (l964) "Stereoscopic shadow images." Nature, 203, 4952, 1407-8. {C&MofP [21] Pp. 292-294}.

5 Gregory, R.L., Wallace, J.G. and Campbell F.W. (l959) " Changes in the size and shape of visual after-images observed in complete darkness during changes of position in space." Quart J exp Psychol II, l, 54-5. {C&MofP [22] 295-298}.

6 Anstis, C.M., Shopland, C.D. and Gregory, R.L. (l961) "Measuring visual constancy for stationary or moving objects." Nature, 191, 4l6-17. {C&MofP [23] Pp.299-301}.

7 Gregory, R.L. (l953) "On physical model explanations in psychology." Brit J of Philosophy of Science, 4, 192. {C&MofP [47] Pp. 537-542}.

8 Gregory, R.L. (l961) "The brain as an engineering problem." In: W.H. Thorpe and O.L. Zangwill (eds.) Current Problems in Animal Behaviour, Methuen. {C&MofP [49] Pp. 547-565}.

9 Gregory, R.L. (l968) "The evolution of eyes and brains - a hen-and-egg problem." In: S.J. Freedman (ed.) The Neuropsychology of Spatially Orientated Behaviour, Illinois, Ch. l, 7-17. {C&MofP [53] Pp. 602-613}.