ADVERTISEMENTS. 



REMOVED TO 25, GOLDEN- SQUARE, W. 

 FOSSILS, MINERALS, AND ROCKS. 



JAMES R. GREGORY begs to inform his numerous patrons that he has 

 removed from 3, King "William-street, Strand, to the above very extensive 

 premises, where he trusts to receive a continuation of their patronage. 



He has for Sale large Collections of the above, as single specimens, or in 

 collections, or as series from the various formations, etc., at very reasonable prices. 



British rocks in collections of 100 to 200 specimens from various parts of the 

 British isles, stratigraphically arranged from all formations, with name and 

 locality. These are all clean and fresh-broken specimens, all of the same size in 

 each collection, so as to be arranged neatly and without waste of room in 

 cabinets, &c. 



Fragments of minerals for analysis by blowpipe, etc., in collections of 300 spe- 

 cimens in boxes, price 18s., or in single series of 50 at 3s., also 40 larger fragments 

 of rare or new minerals, 10s. 



Rare minerals and earths for chemical purposes, manufactures, etc. ; crystals of 

 diamonds, and all the varieties of precious stones, in collections, etc. 



The fossils consist of a large and fine collection — all the British strata, includ- 

 ing fine specimens of fishes from the Devonian, Lias, Carboniferous, and Oolitic 

 series. Also fine museum specimens of Cyclopteris Hibernica, Holoptychius, 

 Coccosteus, Turtles, and various other interesting fossils, which may be obtained 

 in collections, or as single specimens. 



Small or large collections can be arranged to order, for which estimates can be 

 torwarded. 



Scientific Books, Maps, Charts, Cabinets, Glass-capped Boxes, Hammers, and 

 all kinds of apparatus necessary for the collection and arrangement of Geological 

 and Mineralogical specimens. 



Lists of species of the Devonian fishes with prices, and lists of the contents of 

 collections of fragments of minerals and other collections can be had on appli- 

 cation. 



J. R. GREGORY, 



MINERALOGIST. 



25, GOLDEN-SQUARE, LONDON, W. 



N.B. Specimens of the new species Agnostis venulosus, lately found in Great 

 Britain, and other Lingula fossils. 



GAVIN YOUNG, LAPIDARY, 



LOGIE COTTAGE, CANON-MILLS, EDINBURGH, 



Begs to inform Geologists that, by the aid of water-power and improved 

 machinery he is enabled to 



CUT FOSSILS AND MINERALS 

 in a better way and at a cost much less than hitherto accomplished, by which 



The most Delicate Examples can he Reduced and Cut to any Line, 

 without Injury to the Surface, 



Part carriage allowed from distant correspondents ; and reference kindly per- 

 mitted to Edward Wood, Esq., F.G.S., F.R.S.L., &c, &c, Richmond, Yorkshire 

 Alexr. Bryson, Esq., F.S.A. Scot., F.R.P.S., &c, 4, Inverleith Terrace, Edin- 

 burgh ; Charles Upham Shepard, M.D., L.L.D., Prof, of Chemistry in Medica 

 College of South Carolina, and of Mineralogy in Amherst College. 



