CONTENTS OF THE PRESENT PART. 
Konkurrenz der Rohseidenproduktion. By S. Ito. . >33 
CONTENTS OF THE VOL. II. PART I. 
Ueber die Zusammensetzung der abnormalen Milch und Aschen- 
bestandtheile. Von S. Hashimoto 1 
Monographie der Cercopiden Japans. Von S. Matsumura. ----- 15 
CONTENTS OF THE VOL. II. PART II. 
Eie Wasser-Hemipteren Japans. Von S. Matsumura 53 
On some Japanese Species of the Scolytini. By Y. Niisima 69 
Monographie der Forficuliden Japans. Von S. Matsumura and T. Shiraki 75 
CONTENTS OF THE VOL. II. PART III. 
On the Constituents of Rush-Pith. By K. Oshima 87 
On Puccinia parasitic on the Umbelliferae of Japan. By S. Miyake —97 
