622 
Correspondence . 
LOftober, 
“ FELLOW OR MEMBER?” 
To the Editor of the Journal of Science, 
Sir, — Can you inform me what entitles a Society to dub its con- 
stituents “ Fellows ” instead of Members ? A legal friend tells 
me that only bodies incorporated under a Royal charter are duly 
entitled to make use of the former term ; but there is at least 
one instance where a Society which has no such charter, but is 
merely enrolled under the “ Companies’ A dt,” has appropriated 
the more assuming name. Hence it would seem that if there is 
any positive law on the subjedt it is never enforced. — I am, &c.. 
B. S. W. 
A TALKING SWAN. 
To the Editor of the Journal of Science. 
Sir, — I have heard, on what I believe to be unimpeachable 
authority, of a swan which had learnt to utter a few words. The 
bird in question, an old female, lived in solitude on a large reser- 
voir belonging to a woollen-mill near Huddersfield. Its vocabu- 
lary, picked up from the fadtory girls, was very limited, and of 
too “unparliamentary” a charadter to be quoted in the “Journal 
of Science.” I never before heard of a bird belonging to this 
order acquiring human language. — I am, &c., 
Viator. 
THE EFFECT OF TEMPERATURE ON FISH, 
To the Editor of the Journal of Science. 
Sir,' — Having frequently been informed that carp could live at 
excessively high temperatures in the pools formed by the water 
which has been used for the slacking of slag in the black 
country, and also in the warm springs of Japan, I have made 
experiments to ascertain the limits of temperature which 
Prussian carp ( Cyprinus Gihellio) can endure, and the results of 
these experiments clearly show that the truth is strikingly different 
from that which is generally supposed. 
