AUTHOB'S PREFACE 

 TO THE SECOND EDITION, 



Tin: friendly nveption which the Text-book of 



of Man and Mammals" ha > found, i- an indicatioo ! osed 



interest \\hich this branch of Morphology now meets with. 



ren more than a year ago, after the iii>t pan of tl '"ook 



appt ared and while the second part was in the press, tl; ity of 



preparing a second edition became evi> 



In this edition fundamental chan-es have not been und 

 the text has. however, undergone an exp:in>in in some places, owing 

 to the attention given to several work.-, which have recently appeared. 

 Thi> has been the i-uso with the section on the first developm 

 processes of the egg (Wi: H.MANN. I'.; - > : that on the origin of 



the vascular system (RABL, I^KKLKT); that on the development of 

 the i'u'tal membranes (DuvAL, OsBoux) ; and that on the human 

 plan-nta ( KASTSCHKXKO. WAI.DKYI'.K. Kf<;E). 



As the.-erond part of the text-Look !.as jn>t ap: hns been 



le to incorporate it in the second edition with 



It has, furthermore, seemed to me expedient in the second edi 

 to distribute at the ends of the several chapters th.- >ynop-es of the 

 literature, which in the first edition were DTOUg t theclose 



of the whole work. Finally, there has been added 

 subjects, liy which a more rapid on concerning the separate 



topics will be facilitated ; this will -6 of the 



work. 



.May the book in this form make for ' . not only 



among students of medicine and the natural sciences, but al>o with 

 all those who have a fond: a comprehension of studies 



in natural science. 



JL.XA, I'cbniarij 18S3. 



