[Sir George Buchanan, physician and epidemiologist.] Autograph Letter Signed ('George Buchanan'), apologising 'To the Secretary of the Social Science Association' for not being able to present a paper.

2pp., 12mo. Good, on lightly aged and creased paper. A florid apology, beginning: 'The very kind consideration extended to me by yourself and the other managers of your admirable association appears to demand from me something more than a renewed Confession of incapacity on my part.' He has been 'at work almost all the time that other people have been making holiday, without finding time to leave my more imperative labours for the compilation of the paper which I should have wished to present'. He continues in the same tone, with the reminder that he 'at first expressed to Mr. Holland for your information my Conviction that this must needs be the case'.