A CATALOGUE 
OF THE COLLECTION OF 
CAMBRIAN AND SILURIAN 
FOSSILS 
CONTAINED IN 
THE GEOLOGICAL MUSEUM OF THE UNIVERSITY OF CAMBRIDGE, 
BY 
J We SADDER, IG.s: 
WITH A PREFACE BY 
THE REV. ADAM SEDGWICK, LL.D. F.R:S. 
WOODWARDIAN PROFESSOR OF GEOLOGY IN THE UNIVERSITY OF CAMBRIDGE, 
AND 
A TABLE OF GENERA AND INDEX 
ADDED BY 
PROFESSOR MORRIS, F.G.S. 
Cambridge: 
AT THE UNIVERSITY PRESS. 
M. DCCC, LX XIII. 
