SOME MATTERS OF FACT OVERLOOKED BY PROFESSOR WILSON

Matters of Fact

Some Comments on Professor

In a recent issue, this journal published an article by Professor Robert S. Summers reviewing and commenting critically upon a recent book by Professor H. L. A. Hart of Oxford entitled The Concept of Law. Among other things, Professor Summers criticized Professor Hart for stressing rules to the neglect of other elements of a legal system and for succumbing to reductionist tendencies in the anal...

Some Functional Equations in the Theory of Relativity. by Professor

IN transcribing the process of light-signalling which leads to his kinematic equations of transformation, Einstein* obtains relations, connecting the space-time coordinates in two systems of reference, in the form of functional equations. He solves these by passing to partial differential equations, and restricts the solutions to linearity by a rather obscure appeal to the homogeneity of time a...

Some General Aspects of Modern Geometry.* by Professor

IT is a great honor and an exceptional privilege to be asked to address such a distinguished audience as is assembled here upon this occasion. And so my first duty is the simple and elementary one of expressing to the officers of the societies, meeting in joint session, my gratitude for having selected me for such a task. But the task itself is not a simple one. Unwelcome as it may be, the fact...

Cryptic matters: overlooked species generate most butterfly beta-diversity

to reproductively interfere between them (Pigot and Tobias 2013). Results for a series of cryptic butterfly species revealed only restricted contact zones on mainland and chequered distributions over narrow (3–10 km) sea straits (Dincă et al. 2011, Dapporto et al. 2012, Sañudo-Restrepo et al. 2013). If chequered distributions are overrepresented among cryptic species, they could encompass a dis...