178 THE ZOOLOGIST. 
Spring Cay or tHe Kyor.—In reading Captain H. W. Feilden’s 
interesting “ Notes from an Arctic Journal,” I was much struck with his 
description (p. 102) of the summer call of the Knot heard on the shores of 
the Polar Sea, and which he compares to the words “ Tullawee, tullawee, 
whee, whee.” How strikingly does this resemble the spring call of the 
Golden Plover, which indeed I can only imitate by using the same word, 
“Tue, tullawee, tullawee, tullawee,” uttered in a descending scale. In 
these marshes we always hear the note of the Golden Plover during the 
first fine days from the middle of February to the end of the month. The 
weather this year in February was so severe, and the temperature so abnor- 
mally low, that our spring songsters have kept silent. The Ist of March was 
really the first fine spring-like day of the season, and I heard Blackbirds, 
Thrushes, Mistletoe Thrush, Larks, and Yellowhammers and Black-headed 
Buntings, singing together, and far off, from invisible positions, in the clear 
blue heavens, came floating down in mellow cadence the sweet but mournful 
spring call of the Golden Plover. After all the extraordinary severity and 
discomfort of the past winter, we trust our spring songsters have not 
made a mistake, and may have occasion to relapse into their ordinary winter 
notes. I wish to correct an error in my last communication’ to ‘The 
Zoologist,’ p. 127, twenty-third line, for “ below zero” read “ above zero.”— 
Joun Corpisaux (Great Cotes, Ulceby). 
OssERvations on Eac-Biowinc.—Under this title, in ‘The Zoologist’ 
for 1877, p. 164, are to be found some excellent observations on blowing 
eggs, and the description and figure of a bellows invented for the purpose 
by Mr. EK. Bidwell. The only object I have in writing is to suggest to 
oologists, instead of using the cylindrical leather bellows described by 
Mr. Bidwell, to substitute a perhaps more satisfactory iustrument—viz. a 
Clarke’s spray-producer. This instrument is worked by merely squeezing 
the end ball, and, according to the rapidity of pressure ou it, a current of air, 
strong or weak, is expelled from the tube attached to the second ball. This 
tube is attached to the blow-pipe by slipping it over the blow-hole, and the 
apparatus is complete. I used this contrivance last season, and found it 
answer very well. I had no breakage (as far as blowing was concerned), 
although I blew several dozen eggs ranging in size from a Heron’s to a 
Golden-crested Wren’s. The spray-producer (the bellows being the only 
pact required) may be procured of any chemist or surgical instrument maker, 
and costs about five shillings. I also found it an advantage to tie a small 
piece of wadding or tow near the end of the blow-pipe. By this means the 
contents of eggs, which are liable when blown out to run along the blow- 
pipe and soil the stand and table on which it rests, are diverted, and 
following the course of the tow, reach the saucer or receptacle placed beneath 
to receive them. A syringe for washing the inside of eggs after blowing is 
