CONTENTS. 



The Acidimetry of Hydrogen Fluoride. By Tamemasa Haga, F. C. S., 



Rigakuha/iiishi, Assistant Professor, and Ynkiclii Osaka, Rigakushi, 

 Imperial University 255 



On the Poisonous Action of Alcohols upon Different Organisms, By 



M. Tsukamoto, NOgakiishi 269 



Formulas for sn 9u. By 0. Sudö 288 



Formulae for sn 10 u, en 10 u, dn 10 u in terms of sn u. By E. Sakai, 



Student, College of Science, Imperial University 285 



The Diagram of the semi-destructive Earthquake of June 20th, 1894 



(Tokyo). By S. Sekiya, Ri(/aki(/t(i/cit.'ihi, Professor of Seismology, and 



F. Omori, Ri(j(i/ii(shi, Imperial University 289 



Vol. VII., Pt. 5. 

 Beiträge zur Theorie der Bewegung der Erdatmosphäre und Wir- 

 belstürme. Von DiRo KiTAO, 7^/. rhil., Professor für Physik und 

 Mathematik an der laiidwirthschaftlichen Facultät der Kaiserlichen 

 Universität zu Tokyo 293 



