460 MR. A. H. PATTERSON’S NATURAL HISTORY 
To the collection of Fish, the Rev. Maurice C. H. Bird added 
a hybrid Bream-Roach, taken at Hickling ; this was interesting 
to many members on account of the correspondence in the 
‘ Field.’ Another noteworthy addition is that of a Fox- 
shark or Thresher ( Alopecias vulpes ) measuring 10 feet 8 inches 
in total length, taken in the nets off Hasboro’ and brought 
into Cromer. Mr. Thomas Southwell recorded its capture in 
the October number of the ‘ Zoologist.’ 
A section of Economic Biology has been formed and the 
Castle-Museum Committee hope to obtain the active co-opera- 
tion of local entomologists, botanists, and others interested 
in the subject. Realistic models of foliage, etc., damaged by 
Chafer-beetles, Strawberry-beetle, Wireworm, and Cabbage- 
moth, have been placed on exhibition in the Museum. Each 
exhibit is accompanied by a descriptive label, based whenever 
possible on the leaflets issued by the Board of Agriculture, 
which explain the life histories of the pests and suggest a 
simple method for their destruction and prevention. 
The total number of visitors to the Castle-Museum during 
the year ending December 31st, 1906, was 110,217. 
XVI. 
NATURAL HISTORY NOTES FROM YARMOUTH. 
By Arthur H. Patterson. 
Read 2 6th March, 1907. 
1906. 
The year 1906 has been, to me, one of exceptional interest, 
by reason of the success which has attended my endeavours 
to work out, in a more systematic fashion, the Marine Fauna 
of the neighbourhood. Early in March it occurred to me 
that a little diplomacy in the matter of enlisting the good will 
