OCCASIONAL NOTES. 213 
Morris) “lined thickly with feathers.” It contained twelve eggs quite 
fresh.—W. Hewerv (26, Clarence Street, York). 
Littte Eerer 1x Yorksutru.—Allow me to record the occurrence of 
the Little Egret, Ardea garzetta, which was shot on January 4th, 1881, 
near Haybourn Wyke, four or five miles north of this town, and is now in 
the possession of Mr. Thompson, a bird-preserver at Scarborough. The 
specimen is in very fair plumage, but is deficient of the long feathers which 
form part of the occipital plume.—Roxserr P. Harper (2, Royal Crescent, 
Scarborough). 
Late APPEARANCE OF THE GREAT GREY SHRIKE IN PERTHSHIRE.— 
A specimen of this species, a female, was shot by my gamekeeper here on 
March 19th, in a small piece of cover. It was in fine plumage. This 
seems a very late period for its occurrence. The stomach contained the 
remains of a Blue Tit.—Joun J. Datetutsn (Brankston Grange, Culross, 
Perthshire). 
Crane at Scrtty.—A Crane, Grus cinerea, has been forwarded to me 
from Scilly, and is being preserved for the Lord Proprietor of the Islands. 
It is an adult female, the ovary containing eggs about the size of a pea,— 
W. H. Vineor (Penzance). 
Satmon at Sza.—In May, 1880, the nets of the driver ‘ Wanderer’ of 
Mousehole, Richard Pentreath, master, fishing fourteen miles north-west of 
the Scilly Islands, took a Salmon of twenty-seven pounds weight, in excellent 
condition. There was no fresh-water course worthy of the name of even a 
small river within one hundred miles of the place where the capture occurred. 
In the week afterwards on the same ground the nets of the driver ‘ Thetis’ 
took a Salmon of twenty-eight pounds and a half, in such good condition 
that it sold on the quay at Scilly to the buyers for London by auction for 
£3 0s. 94.—THomas CornisH (Penzance). 
Tue Swimmine-BuappER or FisHes.—In a note to the Paris 
Academy, Prof. Marangoni gives the results he has arrived at in a study 
of the swimming-bladder. He states, first, that it is the organ which 
regulates the migration of fishes, those fishes that are without it not 
migrating from bottoms of little depth, where they find tepid water; while 
fishes which have a bladder are such as live in deep, cold water, and 
migrate to deposit their ova in warmer water near the surface. Next, 
fishes do not rise like the Cartesian diver (in the well-known experiment), 
and they have to counteract the influence of their swimming-bladder with 
their fins. If some small dead and living fishes be put in a vessel three- 
