270 THE COMMITTEE'S ADDRESS. 
These, and the more local phenomena, were illustrated by maps 
and diagrams ; and the party were shown the washing floors and 
machinery where the ore is cleared from impurities, preparatory 
to being smelted. The botanizing party, in the meantime, were 
not idle, and besides many plants, common to such situations, 
several which are comparatively rare in our district were found. 
The more interesting perhaps were Vaccinium uliginosum, Lis- 
tera cordata, Saxifraga stellaris, and Sedum villosum ; for this 
last the habitat is new. The plants above noticed were princi- 
pally gathered by the Rev. John F. Bigge. In the evening the 
party assembled at the hospitable board of Mr. Sopwith, to whom 
the Club is wholly indebted for this day of high interest and 
social enjoyment. A notice, of the occurrence of a Fossil fish, 
was read, at this meeting, by A. Hancock, Hsq. 
The Fourth Field Meeting was held on the 18th of 
August, at Chevington Wood and the neighbourhood of 
Warkworth, a district interesting for its picturesque beauty and 
its romantic associations, as well as for its numerous and varied 
natural productions. As the best means of carrying out the pur- 
poses of the meeting, the members who had assembled divided 
themselves into parties, each set pursuing more particularly its 
favourite department, not forgetting, however, to bestow due 
attention on an examination of those curious antiquarian re- 
mains which have so long rendered Warkworth a noted place. 
Several interesting plants were observed. Mr. John Storey 
collected, in Chevington Wood, specimens of Callitriche platy- 
carpa, a species which has not hitherto been recorded as occur- 
ing in Northumberland. Mr. Storey likewise noticed Potamo- 
geton perfoliatus, in the Coquet. He also found, in the same 
stream, the Ruppia rostellata of Babington’s Manual. It is, 
perhaps, doubtful whether the plant, to which this name has 
been applied, is more than a variety of Ruppia maritima ; but 
as we are not aware that more than one other Northumberland 
habitat was previously known, it is interesting to note that the 
same species, or form, occurs in each, and therefore that the true 
Ruppia maritima has not yet been met with in the county, al- 
though the present plant is mentioned under that name, in 
