NOTES AND QUERIES. 39 
PISCES. 
Flight of the Flying-fish—F or the last three months I have been 
crossing and recrossing the various areas of: ocean where Flying-fish 
are seen, in many places in countless thousands. - After most carefully 
watching their flight, both with the unaided eye and also with a pair 
of Zeiss binoculars, 1 have come to the conclusion that the impetus 
which makes a long and sustained flight possible is the initial beating 
of the wings, which move so rapidly that, except by the splash they 
make upon the surface as they gradually rise clear, these cannot be 
made out. When they are vol-planing, as they often do for long 
distances, then the opalescent sheen of the wings which are held 
horizontally are most noticeable, and have given many people the 
impression that the elongated membranous fins are only used as the 
planes of a motor-driven aeroplane. Another point was lately im- 
pressed upon me whilst closely watching them, and this was the 
ereat effect the movements of the tail have upon the flight, aided no 
doubt by the smaller posterior wing-like fins acting as a guiding 
rudder. Before they fall clumsily into the water, it is often to be 
seen that their wings, 7. é. the large anterior pair, are raised forty-five 
degrees from their previous horizontal plane. I can testify to the 
fact that they are nice eating. Those seen off Madagascar seemed 
much larger than those I saw off the Island of Socotra. One rose 
high enough to land on the hurricane-deck of a P. & O. steamer I 
was on board, twenty-five feet above the water; they often hurl 
themselves on to the well-deck of vessels, and electric light on board 
seems to have a fatal fascination for them at night. The popular 
idea seems sound, that they mistake a ship for some gigantic dolphin, 
whose favourite food they appear to be-—Prrcy Renpaut (Black- 
heath). 
CRUSTACHA. 
The Brine Shrimp (Artemia salina) bred from Tidman’s Sea-salt. 
—With reference to Dr. Calman’s exhibit at the meeting of the 
Zoological Society of London, held on June 27th last, mentioned in 
‘The Zoologist’ (1911, p. 280), perhaps I may be allowed to state 
that specimens of the Brine Shrimp, bred from Tidman’s sea-salt, 
were exhibited by me at a meeting of the Royal Physical Society of 
Edinburgh on Feb. 28th, 1910. Of three boxes of the salt examined 
only one yielded Artemia eggs. It would be interesting to know 
where this salt comes from. Perhaps some reader of ‘The Zoologist’ 
can tell us.— Winu1Am Evans (Morningside Park, Edinburgh). 
