Miscellanies. 203 
11. Trilobite. 
Letter to the Editor, from Mr. Fred. Jukes, dated July 4th, 1832, 17 Paradise teed 
Birmingham, (Eng.) 
Sir—My friend Mr. Holmes, 
on his return to America, having 
kindly offered to convey to you 
a parcel, and knowing the inter- 
est you take in all branches of 
natural history, I avail myself of 
the opportunity, by sending you 
some casts and a drawing of an 
extraordinary fossil of the Trilo- 
bite kind, which I have in my 
possession. You may probably 
lave seen some account of it in 
Loudon’s Magazine of Natural 
History, with remarks upon it by Mr. I. D. Sowerby, in which he 
refers to some similar specimens discovered in your country at Tren- 
ton Falls. The singularity of this tribe of fossils, and the circum- 
stance of their being associated only with the most ancient strata, 
render them so peculiarly interesting, that no opportunity should be 
lost in making known the various species which are from time to 
time discover 
This fossil was Pica in a low stratum of transition limestone, at 
Great Barr in Staffordshire, and though it is more than ten miles 
from Dudley, where the limestone is so celebrated for its beautiful 
specimens of the ‘¢Calyméne Blumenbachii,” there is no doubt but 
it is a continuation of the same formation, and in all probability this 
fossil will some day be met with there. The other species which 
are found at Dudley aré, the “A’saphus caudatus,” “Calymeéne 
variolaris,” and the lower portion, of an unknown one, —_— 53 in 
the 4th Vol. of Loudon’s Magazine. 
Remarks.—The No. of Loudon’s Magazine alluded to by Mr. 
Jukes, is missing from our collection. Supposing however that it 
may be interesting to American readers to see a figure of this trilo- 
bite, we republish the figure, with the letter of Mr. Jukes. The 
casts alluded to arrived in perfect order, and are of course still more 
striking than the drawing. We learn from Prof. Jacob Green, that 
the genus of trilobites, to which the specimen of- Mr. J 
has not yet been found in this country—Ed. 
