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Rex A. Knight is the author of Riding On Luck, Saga of the U.S.S. Lang (DD-399). Further reading: Operation Husky: The Allied Invasion of Sicily, by S.W.C. Pack; and Bitter [...]

PROF. LLOYD MORGAN long ago formulated the principle that “we should not regard any instance of animal behaviour as the outcome of higher mental processes, if it can adequately be interpreted as the outcome of mental processes which stand lower in the order of mental development”. This principle is but a special application of the canon of parsimony, which must be obeyed in all scientific explanation; and, when logically extended, it imposes upon us the duty of inquiring, in the first place, whether animal actions must be ascribed to any mental processes at all.

Several letters to the editor are presented in response to articles including "UCL expenses rules mean staff seen as 'inherently untrustworthy'," "A matter of consent" by Matthew Wyard and "There's life in the old dog yet," all in the May 12, 2016 issue.

Several letters to the editor are presented in response to articles in previous issues including "No Jobs, So Get Them on Courses" in the November 3, 2011 issue, "Democratic Experiments," by Job Turney in the November 3, 2011 issue, and "Kropotkin's Heirs Apparent," by Alan Ryan in the November 3, 2011 issue.