PREFACE. 
The Foraminifera, widely distributed in the seas of to-day, enter so 
largely into the composition of the stratified rocks, forming in many 
places such vast thicknesses of limestone, as necessarily to claim the 
attention of the Geologist and Palaeontologist. 
This Catalogue, prepared by Prof. T. Rupert Jones, F.R.S., one of our 
best authorities on this group of organisms, does not pretend to be a com- 
plete or exhaustive one, but is designed to show the present state of the 
collection of Fossil Foraminifera in the British Museum. 
In addition to the lists of genera and species, much valuable information 
has been added by the author as to the classification and distribution of 
the Foraminifera, both in time and space ; a short account is also given 
of the structure and mode of growth of existing forms. 
It is hoped that, in addition to its utility to Museums and Private 
Collectors, this Catalogue may be the means of largely increasing the 
extent and usefulness of the National Collection. 
HENRY WOODWARD. 
British Museum, 
(Natural History) 
Department of Geology, 
March 20, 1882. 
