MEMOIRS 
OF THE 
NATIONAL MUSEUM, 
MELBOURNE. 
No. 2. — A Monograph of the Silurian Bivalved Mollusca of 
BY FREDERICK CHAPMAN, 
PALAEONTOLOGIST TO THE NATIONAL MUSEUM, MELBOURNE; ASSOC. 
LINN. SOC. LOND. ; E.R.M.S. 
(WITH SIX PLATES.) 
PUBLISHED BY ORDER OF THE TRUSTEES. 
$>t! autljontju: 
J. KEMP, GOVERNMENT PRINTER, MELBOURNE. 
FEBRUARY, 1908. 
6608. 
