CONTENTS. 



Vol. XVII., Ft. 2. 



Art :',.— Contributions to the Embryology of Amphibia: — The 

 Mode of Blastopore Closure and the Position of the 

 Embryonic Body. By Sakujirq Ikeda. (intJi 4 pkttes.) 



Art. 4. — On the Development of Lingula anatina. By Naoitidé 

 Yatsl-, MgakusM. (With 8 plates.) 



Ait. 5. — Notes on Histology of Lingula miatina BB.UGIERE. By 

 Naoridé Yatsu, Bigahushi. (With 2 plates.) 



PRINTED AT THE "TOKYO TSUKIJT TYl'E FOUNDRY." 



