PREFACE TO SECOND EDITION 



The present edition has undergone a thorough revision, several 

 sections having been rewritten, and every page having been carefully 

 examined. A very considerable number of new illustrations have 

 been added and several of those of the first edition have been redrawn. 

 Experience has shown that it is easier to remember technical terms 

 when their derivation and meaning is understood. Hence there has 

 been added to this edition a list of Greek and Latin roots, from which 

 the student can ascertain the origin and composition of practically 

 every anatomical and embryological term in the volume. For 

 assistance in the preparation of this, I am indebted to Professor W. A. 

 Oldfather, of the University of Illinois. I would also return thanks 

 here to the various persons who have sent me criticisms and corrections 

 of statements in the first edition, and I cannot refrain from expressing 

 my appreciation of the way in which the publishers have presented 

 this and the former edition. 

 University of Illinois. 



