On a Bay without 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 : — 



Carbon, . . . . 0-56 per cent. 

 Silica, . . . . . 0-90 „ 



These new percentages being so close to the last, we may 

 regard the first analysis as quite correct.] 



III. On Professor M* Coy'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'Coy, in the " Annals of 

 Natural History," vol. vi. p. 405, and which Yarrell, quoting 

 Thomson, places under the species of Sandy or Cuckoo Eay. 

 Couch, in his work on the " History of the Fishes of the 

 British Islands," now coming through the press, arranges 

 them as two 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 



