vi PREFACE, 



been treated in the same way, but this does not require any 

 apology at the present date. 



By treating the subject more concisely I have been able to 

 increase the real matter to a certain extent, without enlarging 

 the size of the book. I have, of course, only dealt with what 

 has seemed to me to be of capital importance ; many, and even 

 important, details have been omitted, owing to the limits imposed 

 by the aim of the book. 



I have endeavoured to correct some previous mistakes and to 

 supply omissions. If any such have been retained, or have newly 

 crept in, I shall be fairly judged, I know, by anatomists, who 

 will remember the vast extent of our science and the object of 

 this work. I hope that I have satisfied them, and if I have my 

 toil is well repaid. 



Heidelberg, November, 1877. 



O. Gegenbaur. 



