PREFACE. xi 
such marks of reference as should intelligibly connect the Catalogue with the specimens 
arranged in the Cabinets of the Museum. Without this kind of labour the best Catalogue 
in the world would be of comparatively little use to a Cambridge student. Knowing this, 
I was induced to take a journey to Margate for the express purpose of seeing Mr Salter, 
and making arrangements for the discharge of all his personal expenses while he was 
employed in revising the references of his Catalogue, and giving the ultimate finish to his 
work. The state of his health was perfectly deplorable when I last saw him at Margate, 
and the hand of death very soon afterwards arrested all our hopes of obtaining the 
Author's final revision of his work. 
Again, we were, in an hour of need, under a great obligation to Dr Cookson, who 
undertook the laborious task of revising and completing the exact agreement of the cabinet- 
labels with the details given in the several pages of the Catalogue. This work of Dr Cookson’s 
not only required great labour, but very nice discrimination in the separation of the species, 
and demands from us the warmest expressions of our gratitude. 
The final scientific revision of the work was undertaken, at the request of the University, 
by Prof. Morris, who went through his task with that genuine conscientious and laborious skill 
which left nothing to be desired: and it was well for the reputation of the University that 
this final labour was undertaken by so distinguished a Palontologist; for there were several 
blemishes in the Catalogue: such, for example, as the appearance of the same species under 
different names, a few mistaken localities, and other little incongruities arising out of Mr 
Salter’s wretched health and continually interrupted labours. 
Since Prof. Morris’ last revision and Report there has been again a long delay, for which 
I alone am responsible; and I trust that the University will accept this acknowledgment as 
an apology from their very old and infirm, but, in former years, their very hard-working servant. 
The following Catalogue of all the Older Paleozoic Fossils in the Woodwardian Museum 
consists of specimens which have been collected by myself, or presented by my friends, or 
obtained by purchase during my very long tenure of office as Professor of Geology. 
It was meant to be a Supplement to the Synopsis of Paleozoic Fossils by Prof. M°Coy; 
but this condition, as before stated, was not strictly observed; for it will be seen, among 
other variations, that the nomenclature of Prof. M°Coy has not been always followed, the sub- 
sequent examination of some of the specimens by Mr Salter having induced him to class 
them under other genera than those under which they appeared in M'Coy’s “Synopsis.” 
The Collection is, to a great extent, arranged zoologically, under the several Geological 
divisions of the Strata adopted in this Catalogue; and the fossils of each division, commencing 
with the lowest, are tabulated under four columns—the first column indicating the number of 
b2 
