SCIENTIFIC SOCIETIES. 151 
of twelve hundred in one week, and that some Brighton birdeatchers took as 
many as five hundred each in a single morning. The Norwich men report 
that though Greenfinches have been so numerous, they have at the same 
time taken hardly any Sparrows.—J. H. Gurney (Northrepps, Norwich). 
Errata.—Page 89, line 23, for “I ascended” read “I descended.” 
Page 91, first line, after the words “on the 23rd” insert “ April.” 
FISHES. 
Destruction of young Fish by Larve of Dragonflies.—In the 
Hungarian ‘ Rovartani Lapok,’ for December last, L. Bird states that 
the larvee of some Libellula—species not determined—have made such 
ravages in the piscicultural establishment of Ceunt Pulffy at Szomolany 
that in a pond in which 50,000 young fish were placed in the spring of 
1884, only fifty-four could be found the following September, but there 
was a large quantity of the larve of the Libellula referred to. 
SCIENTIFIC SOCIETIES. 
Linnean Society or Lonpon. 
March 5, 1885,—Sir Joun Lussock, Bart., F.R.S., M.P., President, in 
the chair. 
Messrs. James Epps, James Groves, and William Ransom were elected 
Fellows of the Society. 
Dr. F. Day read a paper “On the rearing, growth, and breeding of 
Salmon in fresh water in Great Britain.” Referring first to the statements 
and opinions of the older authorities, he dwelt at length on the more recent 
experiments of Sir James Maitland at Howieton. In December, 1880, 
Sir James obtained salmon-eggs and milt from fish captured in the Teith, 
and from which ova hatched in March, 1881. In July, 1883, it was seen 
that some of the young Salmon, then two years and four mouths old, were 
in parr livery, or had assumed the dress of the silvery smolts, the latter in 
certain lights showing parr-bands. On November 7th, 1884, a smolt 
13 lbs. weight jumped out of the pond, and from this fish about 100 eggs 
were expressed. As they seemed to be ripe they were milted from a Loch- 
leven trout. On January 28rd, 1885, eighteen of these eggs hatched, and 
the young were strong and healthy. On November 11th, 1884, about 
12,000 Lochleven trout-eggs were milted from one of the foregoing smolts, 
and they hatched on January 28th, 1885. On December Ist, 1884, 1500 
eggs were taken from two of the foregoing smolts, and milted from one of 
the males. On the 9th about 4000 eggs from these smolts were fertilised 
from one of the males, and on the 13th 2500 smolt-eggs were milted from 
