H. P. Grice, “Some Remarks About the Senses,” in Analytical Philosophy, First Series, ed. R. J. Butler (OUP Press, 1962): 248-268. Reprinted in F. MacPherson (ed), The Senses (OUP Press, 2011): 83-101 [for this and other readings, you’ll be prompted to enter a username (student) and password (seecritfilez)].
Cameron Tonkinwise Talk
https://www.youtube.com/watch?v=awmcYEoUwLY
Thanks, Ahnton!