;3U PROF. DARWIN ON THE EQUILIP.RIUM OF A ROTATING MASS OF LIQUID. 
{slip! a, p. 671, we can hardly fail to be reminded of some such phenomenon as the 
protrusion of a filament of protoplasm from a mass of living matter. 
Notwithstandino; the caveat which M. Poincare enters as to the dangers of 
applying these results to heterogeneous masses and to cosmogony, I cannot restrain 
myself from joining him in seeing in this almost life-like process a counterpart to at 
least (me form of the birth of double stars, planets, and satellites. 
Note. — Erratum in “ Ellipsoidal Harmonic Analysis,” ‘ Phil. Trans.,’ A, vol. 197, 
p. 512, line 4 from foot. The first term inside the bracket shmdd be negative. 
The mistake runs on and the same correction should be made in equations 
(62), (63), and (64), and in line 9 on the following page. 
