176 
THE GEOLOGIST. 
Postscript to Mr. Povrie's Letter on Cephalaspis. — The following 
postscript to Mr. Powde's letter on Cephalaspis has just reached us. Ed. Geol. 
" Keswallie, March 26. Since sending off my short notice of Cephalaspis I 
have only yesterday, been able to add to those akeady noticed another Scottish 
localitv which promises to be moderately rich m remains of this fish ; having 
discovered a few imperfect heads in a quarry opened in a wooded hill a little 
north of Westerton house, near Bridge of Allan, in Perthshire. I would not 
have thought this deserving of notice had I not in the same place found two 
heads, undoubtedly of the nearly allied genus Pteraspis, being so far as I am 
aware' the first specimen of this fish recognised in Scotland. I am not sufficiently 
acquainted with the English specimens of this genus to be able to say whether 
the two I have found are specifically the same with any of these, or whether 
they may fonn an entirely new species."— J. Powrie. 
REVIEWS. 
Old Bones ; or, Notes for Young Naturalists. By Bev. TV.' S. Symonds. 
London: Hardwicke. 1861. 
Old Bones amongst our fore-fathers were of little value indeed, but modern 
manufactures and chemistry have made them a valuable commodity. Geolo- 
gists, too, have found a value in Old Bones beyond any ideas of manufactui-ers 
or domestics. Erom the old bones of animals that lived in the vastly remote 
periods of Geological History the paleontologist develops the ideal forms of 
beiugs long since extinct and perished from the face of the earth. These he 
mentally clothes anew with muscles and with flesh, and furnishes us from those 
dried and stony relics with real accounts of the habits and natui'es of the 
beasts and reptiles, fish and birds of lands and seas the eye of man ne'er 
gazed on. 
"VYe all know Mr. Symonds' other popular little books, and this will be not 
less a favourite. AH Mr. Symonds does he does well ; but of the illustrations 
we can only say that they are judiciously selected, and that their execution is 
as good — or as bad — as in the generality of modern popular geological works, 
in which the illustrations rarely have any pretensions to truthful or artistic 
merit. 
The Dublin Quarterly Journal of Science. Edited by the Rev. S. Haughtou, 
M.A., E.R.S. Dublin : McGlashan and GiU. 1S61. 
Although our space this month is greatly restricted, and we are still obliged 
to leave over until future numbers a great quantity of valuable matter in hand, 
we would not willingly aUo^T the present occasion to pass without a few lines 
of congratulation on the appearance of another excellent scientific periodical, 
the Dublin Quarterly Journal of Science, to which we wish every success, as 
doubtless will be attained under the able direction of Professor Haugliton. 
