PKEFACE 



SECOND EDITION. 



JL HE last edition of the Catalogue of the Physiological Serie? 

 was completed in 1840. A second edition of the first volume 

 was published in 1852, which however only incorporated the 

 descriptions of new specimens, the old arrangement being- 

 retained without revision. Seoing that this edition was carried 

 no further, it seems to me best to consider the present as the 

 Second Edition, as the arrangement is different and a complete 

 revision has been effected. 



Since 1840 numerous additions to the Museum have been 

 made, especially by illustrations of Mammalian anatomy. Of 

 these, and all others, there are no descriptions, only the name 

 of the animal from which they are derived being affixed. 

 Many of the preparations of Human Anatomy have been removed 

 to constitute, with additional preparations, a new Series now 

 exhibited in Rooms I. & II. 



In the original Hunterian scheme the intention evidently was 

 to bring together examples of such structures in plants and 

 animals as performed the same function. Such structures in 

 plants and lower animals were very imperfectly represented, 

 and many had become useless from the lapse of time. From 

 these and other reasons a revision of the Catalogue has for a 

 long time been a most urgent need. The difficulty of this is 

 great, as a large number of preparations are required to supply 

 the places of those that have become worthless, and to serve as 

 illustrations of new discoveries, and phases of thought. The 

 additions made of late years have mainly been selected with 

 this view, and I have drawn up a provisional scheme as a guide 



