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MR. A. 0. WALKER’S PRIZES. 
Mr. A. O. WALKER offers a First Prize of Two 
GuINEAS, and a SEconp Prize of Ong Guinea, for the best 
collection of Ska Suetis from the shores of the Society’s 
District. To be competed for by young persons under the age 
of 18, residing, or at School, in the Chester Society’s District. 
The successful collections, or any part of them, if required, to become 
the property of the Chester Society of Natural Science, in which case they 
will be placed in the Society’s Museum. 
The above-named District consists of so much of the County of 
Cheshire as lies W. of a line drawn S. from Warrington, with the Counties 
of Flint and Denbigh. 
ADDITIONAL PRIZES. 
Mr. R. Rimmer, F.L.S., offers a copy of his Work, 
“Land and Fresh-water Shells,” as a PrizE for the best 
collection of rare LAND SHELLS not mentioned in BELLAR’s 
list, as found in this District. No limit as to age. 
N.B.—Bellar’s list is in the Society's Library. 
OFFERED BY A MEMBER OF THE Socrrty.-——A PRIZE OF 
One Guinea for the best collection of the several species of 
Planorbis, Spherium, and Pisidium, found in the Canal and Pits 
around Chester. No limit as to age. 
Persons wishing to compete can obtain all particulars and the 
conditions under which the Prizes are offered, by applying to 
Mr. G. R. Grirritx, Grosvenor Street, Chester; and all 
Collections must be sent in to him on or before the 1st September 
im each year. 
All the Prizes will be awarded at the Annual Gonversazione, 
B 
