On a Bay loithout a Name. 
417 
It has been already stated that the portion of the meteorite 
used for analysis was that obtained by filing the exposed 
faces of its halves ; it might therefore be objected, that the 
material so procured, at least from the harder portion, was 
likely to be mixed with particles of the file used, and especi- 
ally that the percentage of the carbon in the meteorite might 
thereby come out too high. It certainly cannot be denied 
that minute particles of the substance of the file would mix 
with the filings ; but from the texture of the mass these must 
have been but a very trifling proportion, compared to the bulk 
of the filings. To be certain, however, that no substantial error 
had crept in from this source, another determination of the 
carbon and silica was made on a solid piece of the meteorite, 
the result being to show the presence of these constituents in 
the following proportions :— ■ 
CarboDj , , , . 056 percent. 
Silica, 0-90 „ 
These new percentages being so close to the last, we may 
regard the first analysis as quite correct.] 
III. On Professor McCoy's Ray without a name, taken in the Firth of 
Forth, May 1861. By William S. Young, Esq. (The Specimen was 
exhibited.) 
After carefully examining several authorities, I have come 
to the conclusion, that this ray is the same as one described, 
but not named, by Professor M'Ooy, in the " Annals of 
Natural History," vol. vi. p. 405, and v^hich Yarrell, quoting- 
Thomson, places under the species of Sandy or Cuckoo Kay. 
Couch, in his work on the " History of the Fishes of the 
British Islands," now coming through the press, arranges 
them as tv^o distinct species, and neither description coin- 
cides with the specimen now before us. 
The specimen M'Coy got in Dublin bay was considerably 
larger than this one, being 17 to 18 inches long, and 9 to 
10 inches broad. He says its outline, — the semicircle of 
spines or inner margin of the eye, and the spines at the tip 
of the snout, are the same as in the Sandy Kay ; and that it 
resembles the Sand or Homelyn Kay, in having one spot on 
