EXTENSION OF SPHEEE OF ACTION. 
181 
dark-red micaceous sandy lamina, the usual parting between 
the beds of limestone in the quarry named. There is not a 
vestige of dermal tissue, or of any other portion of the fish, 
except those described above. (See Plate VIII.) 
Notwithstanding the meagreness of the characters afforded 
by the specimen, I venture to assign it a provisional name, 
and a place among the Ganoid fishes, as Acanthodes elongatus. 
The genus Acanthodes , to which I refer our fossil, is charac- 
teristic of Devonian and carboniferous rocks ; and, suppos- 
ing my determination to be near the truth, the additional 
evidence thus furnished is in favour of the view taken by me 
in the paper referred to at the commencement of this notice 
as to the probable age of the Blue Limestone series, and its 
entire distinctness as a formation from the mica and talc- 
schists and sandstones, the clayslate, quartzite and crystalline 
limestones of the Caribbean group. 
lQth January , 1879. 
William Miles, Esq., B.A., Vice-President, in the chair. 
Mr. Lechmere Guppy brought under the notice of the 
Association the desirability of extending its sphere of action 
by including within its functions those of an agricultural 
society. The Association had always considered agriculture 
as well as manufacture within the range of the subjects to 
be inquired into .and discussed at the meetings, and members 
would recollect on how many occasions such topics have 
been before the Association. In addition to discussions not 
recorded in the Proceedings, the Association has published 
papers on the manufacture of sugar, the growing of cacao, 
and the rearing of stock. It was proposed now to invite 
