vi AUTHORS' PREFACE 



Bernstein's Lehrbuch der Physiologic (Figs. I, 14, 16, 17 \ 

 32-34, 37, 39-44. 4 6 ~4 8 > and 51-53). We are indebted 

 to F. C. W. Vogel (Leipzig) for the plates of Figs. 5-8 

 (from Hermann's Handbuch der Physiologic, Bd. V), to 

 Edward Besolt (Leipzig) for the plates of Figs. 19, 22, 24, 

 45, 49, and 50 (from Rauber's Anatomic, etc.), and to 

 Fischer (H. Kornfeld, Berlin) for Fig. 23 (from Lenhossek: 

 Der feinere Bau des Nervensystems). 



We are especially indebted to Professor Fick for advice 

 received in the planning of this work. 



Dr. F. SCHENCK. 



Dr. A. GiJRBER. 



WURZBURG, October, 1897. 



