Biographical Notice of Dean Conybeare. 
be doubted that the interest connected with the discovery of the 
existence and workings of minute marine animals at so remote 
an epoch is of avery high order, The flints and other siliceous 
deposits of the chalk and other geological epochs, have indee 
been striking examples of the effect of judicious investigation in 
rendering the most obscure objects the means of throwing light 
upon natural phenomena. 
Mr. Conybeare was fully aware of the necessity of studying 
physical as well as organic prenonices in connexion with geo- 
ogical science; and it is truly surprising how often the intimate 
Mr. Robert Mallet has taught us to do, that they ought not to be 
the stony records of past ages. The paper on the Hydrographi- 
asin of "hames, written i i 
causes which had operated in forming the Valleys of the Thames 
Welsh Coal-fields; one, as I then observed, of those elaborate 
and comprehensive papers which were the fitting work of the 
first pioneers of geological science, and the difficulty of which 
can scarcely be appreciated’ in these times when the foundations 
of the science haye been fairly laid, and geologists have only to 
improve or correct the details. His remarks on the sections of 
the Antrim and Derry coast were also a conjoint work, and of 
much interest. 
