Thanks to Professor Williamson for permission to post this outstanding and informative tribute to the remarkable philosophical career of Ruth Barcan Marcus (emerita, Yale):   Download Laudatio.doc.

(I should note that, at the start, Professor Williamson makes it clear that he is a believer in the existence of "analytic philosophy," and as he conceives it, there is such a discipline, though it probably does not include many of the major figures in Anglophone philosophy in the last fifty years.  But that meta-philosophical question is quite independent of the illuminating celebration of Professor Marcus’s work.)

UDPATE:  Dan Korman (Illinois/Urbana) reminds me that Professor Williamson’s takes a more catholic and less stipulative approach to "analytic" philosophy on p. 21 of his important recent book on The Philosophy of Philosophy.