Dr. SHiiRPET, Dr. Sprott Botd, Dr. Todd, Mr. Nasmyth, Dr. BAiuiy, and Mr. Toysbee
are all distinguished in this field of rsHearch.*

In the present article I have endeavoured to combine with all the authentic
information 1 could obtain from these sources, the results to which I have been
brought by a two years' study of the anatomical charncters of the whole mucous
system. So rapid, however, are the daily advances of knowledge, that it is possible
much has been omitted which is already in some shape before the public, and on the.
other hand, that a few years may greatly modify the general views that are here set
forth. As the anatomical details, however, have been all substantiated by my own
observations, except where otherwise stated, I am enabled to speak with more con-
fidence of their correctness.
BIBLIOGRAPHY.
I



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p. 265. Caruicbabi. Smith, in ' Traneactious of a Soo. for Promoting Med, Know.,' toI. ii..
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' DisqaJB. Ampall, Lieberkiihnii pLysico-microBc.,' Lipsiaj, 1797, 4to, PiNEt, ' Noaographie philoao-
phiqne,' Paris, 1798. X. Bichat, 'Traits dee Membrane*,' Paris, 1800; ' Anatomic gcnerale,' 1801.
