1823.] New Scientific Books. 471 



III. On the Question as to the Existence of Metallic Veins in the Transition 

 Limestone of Plymouth. By the Rev. Richard Hennah. 



(To the Editor of the Annals of Philosophy.) 

 SIR, Citadel, Plymouth, May 13, 1833. 



T have been prevented by illness and other circumstances from 

 attending so early as I wished to your note annexed to my letter, on 

 the subject of metallic veins in the Plymouth limestone, inserted in the 

 28th number of the Annals of Philosophy. 



I have railed on Edmund Moss at Cat-Down this day, not with a 

 view to remove any doubts on the subject existing in my own mind, 

 for there were none, so much as to satisfy your correspondent on the 

 point in question. In answer to my inquiries, he said, that lie bad 

 worked in the lime-quarries at Cat-Down and the neighbourhood 

 upwards of 40 years, and had never observed any mineral whatever, or 

 quartz, in mass in any of them. He recollects, however, selling some 

 time ago to a dealer in Plymouth, a few specimens from the lime, and, 

 among them, one or two from the vicinity of Tavistock; but that the 

 latter were totally different from any thing we had in our quarries. 



I have also asked several other quarrymen, some of whom have been 

 so employed for 12 or 15 years, whether they ever met with, in their 

 workings, any veins of any of the metals, or quartz in quantity among 

 the limestone of Plymouth ? To which they have invariably answered. 

 No, and seemed to wonder at my asking such a question, as at a thing 

 never heard of. 



I shall feel obliged, therefore, by your inserting the above, not only 

 for the purpose of satisfying your correspondent, but because it may 

 also be not unacceptable to your numerous readers in general. 

 I remain, Sir, your obedient servant, 



Richard Hennah. 



Article XIV. 

 NEW SCIENTIFIC BOOKS. 



PREPARING FOR PUBLICATION. 



Mr. E. W. Brayley, Jun. is preparing a work on The Natural^ 

 History of Meteorites, or of those remarkable masses of iron and ot 

 earthy and metallic compounds, which, at different periods, have fallen 

 from the atmosphere, as well in England, as in many other countries ; 

 including remarks on their probable origin. With a Historical Intro- 

 duction, showing that the worship of them was widely prevalent in 

 former ages, and that it still continues in certain Pagan countries; and 

 an Appendix of Tables, &c. In 1 vol. 12mo. illustrated by Plates and 



Diagrams. , . . . 



Mr. J. F. Daniell has in the press a volume of Meteorological 



Mr. Patrick Syme is preparing a work on British Song Birds, to be 

 illustrated with 15 coloured Engravings. 



