IV CONTENTS. 



PART III. 



Page 



ART. VII. Fragments relating to Philosophical Zoology. Se- 

 lected from the Works of K. E. VON BAER (continued) 193 



ART. VIII. On the Development of Zostera. By W. HOF- 



MEISTER 239 



ART. IX. On the Winding of Leaves. By M. WICHURA 262 



PART IV. 



ART. IX. On the Winding of Leaves. By M. WICHURA (con- 

 tinued) 273 



ART. X. On the Development of the Ascidians. By A. KROHN 312 



ART. XI. Observations on the Development of the Pectini- 



branchiata. By MM. KOREN and DANIELSSEN 330 



TWELVE PLATES. 



