lujuusie 
PHILOSOPHICAL TRANSACTIONS 
OF THE 
ROYAL SOCIETY OF LONDON. 
Series A, Yol. 217. Pp. 1-34. 
ON THE INSTABILITY OP THE PEAR-SHAPED FIGURE OP 
EQUILIBRIUM OP A ROTATING MASS OP LIQUID. 
BY 
J. H. JEANS, M.A., F.R.S. 
LONDON: 
PUBLISHED BY THE ROYAL SOCIETY, 
AND SOLD BY HAKKISON AND SONS, ST. MARTIN’S LANE, W.C., 
Printer^ tn ©rfctnarg to iHajestn. 
1916. 
A 549. 
11.7.16 
Price One Shilling and Sixpence. 
