PHILOSOPHICAL TRAI^SACTIONS 
OF THE 
ROYAL SOCIETY OF LONDON 
Series A, VOL. 201, pp. 185-204 
ON THE FORMATION OF DEFINITE FIGURES 
BY THE DEPOSITION OF DUST 
BY 
W. J. RUSSELL, Ph.D., F.R.S. 
LONDON: 
published for the ROYAL SOCIETY 
BY DULAU AND CO., 37, SOHO SQUARE, W. 
CONTINENTAL AGENTS, MESSRS. FRIEDLANDER AND SON, BERLIN. 
1903. 
A 336. 
Price Two Shillings and Sixpence. 
28.5.03 
