PREFACE TO THE SECOND EDITION. 



FKOM their own experience and from the testimony of teachers and 

 students elsewhere, the authors believe that this work answers the purpose 

 for which it was written, viz.: to furnish those who intend to pursue human, 

 veterinary, or comparative anatomy with explicit directions for dissection and 

 for the preparation and preservation of anatomical specimens, and with a 

 correct and clear account of the principal parts of an accessible and fairly 

 representative mammal of convenient size. 



Although arranged for the convenience of beginners, the figures and 

 descriptions are based upon repeated dissections by the authors, and thus 

 constitute an original monograph upon the anatomy of the cat, serviceable 

 for comparison in researches upon other forms. 



The errors and oversights detected in the first edition have been corrected 

 in this, and, in accordance with the progress of anatomical knowledge and a 

 change of the authors' views upon certain points, some new matter has been 

 added and some of the old restated. The more important changes are as 

 follows : 



1. Four figures have been replaced by others representing, respectively, 

 the entire neuron in horizontal section (Fig. 110, p. 408) ; the mesal aspect 

 of a brain separated into its five encephalomeres (Fig. 117, p. 444); the 

 mesal aspect of a brain lacking the callosum (Fig. 118, p. 449) ; a transection 

 through the medicommissure (Fig. 122, p. 458). 



2. Three Tables have been revised, viz.: Names and Synonyms of the 

 encephalic segments (p. 405); Names of the Principal Parts of the Amphib- 

 ian Brain (p. 409); List of Names and Abbreviations (pp. 436-438). 



3. Sixteen pages of new matter have been introduced, viz.: (a) The use 

 of slips in scientific correspondence (p. 52). (b) The use of peroxide of 

 hydrogen in bleaching bones (p. Ill), (c) The methods of starch injection 

 (leaflet between pp. 140-141). (d) A revision of the method of injecting the 

 lacteal trunks and thoracic duct (p. 364). (e) A description of the new figure 

 110 (p. 410). (/) A detailed description of the new figure 117 of the mesal 

 aspect of the brain (pp. 446-448). (g) A commentary upon Chapter X 

 (pp. 400#-400?) in respect to the structure and names of certain parts, the 

 general constitution of the brain and its preparation by the injection of 



