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identification of two others hitherto unknown to Britain, and a 
third, once only found in Scotland. 
Mr. Cordeaux’s observations on the migration of the Stone-chat, 
throw one more ray of light on this mysterious subject, and disclose 
a line of migration, hitherto I believe, unsuspected. 
The memoir of Mr. Lilly Wigg, F.L.S., by Mr. Hampden 
Glasspoole, cannot fail to be interesting to Norfolk botanists, as a 
record of a man whose labours have never been fully recognized ; 
but who as a contemporary of Mr. Dawson Turner and Sir J. E. 
Smith, seems to have been in the habit of contributing information, 
the value of which was more frequently appreciated than recorded. 
As a contribution to the geological history of the county, the 
list of extinct mammalia by Mr. Randall Johnson, must be looked 
on as especially opportune. The identification of species from 
mere fragments of their bones, horns, or teeth, necessitates very 
careful, and sometimes fatiguing research ; and the pioneers of a 
new science in fresh districts, meet with difficulties and disappoint- 
ments such as can be understood only by those who have experi- 
enced them ; for after a laborious comparison of specimens to be 
sought for in distant collections, the discovery of a single fresh 
example, may upset the conclusions arrived at by the labour of 
weeks. The careful record of the deposits from which these mam- 
malian remains have been derived, affords a clue to the climatal 
conditions under which the animals lived, and the existing species 
of the genera represented, supply a reasonable ground for con- 
jecture as to the localities whence the immigration took place ; I 
say “ conjecture,” because in many instances the bones and teeth 
are not of necessity coeval with the beds in which they are now 
found. Very many of the clays and sands of the tertiary period, 
have been formed from the repeated destruction and re-deposition 
of previous fossiliferous beds ; the more solid animal remains 
alone, escaping destruction during the rough process of transporta- 
tion ; in fact many shew by their abraded and polished surfaces, 
long continued action of water and sand. Mr. Johnson modestly 
expresses an opinion, that with increased opportunities of compari- 
son, future discoveries may add more species to the list — may the 
