ADVERTISEMENTS. 



ISGTUEE-DIAGRAMS. 



Now ready, No. IV. of a series of Original Geological Diagrams for Lectures ; to 

 be continued on the First of every month. 



THESE DIAGRAMS will be of LARGE SIZE on CANVAS, 

 and will be accompanied at intervals by smaller Diagrams, on Cloth or Paper, 

 price 2s. 6d. each. Illustrative of the Works of Lyell, MantelLj'De laBeche, Page, 

 and Ansted, as also by Skeleton-lectures for Provincial or Amateur Lecturers. 



Special Sets of Lecture-Diagrams, illustrative of popular Geological Subjects 

 may be had on hire. 



No. I.— A GEOLOGICAL MAP OF THE BRITISH ISLES, with part of the 

 CONTINENT OF EUROPE. Size 9-ft. 6-in. by 11 -ft. 6-m. Price, £3 3s. 



No. IL— FORMS OF FLINTS DERIVED FROM VENTRICULITES : 

 CRETACEOUS FOSSILS. 



No. III.— FUSUS CONTRARIUS ; MUREX ALVEOLATUS ; CRAG SHELLS. 



No. IV.— Part 1. GENERIC FORMS OF FORAMINIFERA. 



Preparing for publication :— CHARACTERISTIC FORMS OF THE MOLAR- 

 TEETH OF FOSSIL ELEPHANTS. 



" Geologist" Office, 155, Strand, W.C. 



CIRCULATING LIBRARY OF SCIENTIFIC WORKS. 



Suggestions having been made to the Editor of " The Geologist " for the 

 formation of a Circulating Library, of new Geological and Scientific Works and 

 Pubhcations, both Foreign and British, he is willing to receive the names of those 

 who may be desirous of its estabhshment. 



The terms proposed are, for the issue of one Work at a time, £1 Is. per annum; 

 for three Works at a time, £2 2s. per annum. 



The circulation of Books will be commenced as soon as 50 names are received, 

 and the Subscriptions wiU be payable in advance. 



FOSSILS from all Formations for selection of Single Specimens, 

 &c. Fine Specimens of Old Red Fishes from Banffshu'e, Caithness, &c. 

 A Large Collection of Minerals for selection of Single Specimens, &c. from a 

 stock of about 6000 choice specimens, and 700 distinct varieties, all with names, 

 and localities, many of which are newly discovered and very rare. 



Collections of Fragments of Minerals, for Blowpipe and other Analysis, in series 

 of 50, in box, price 3s. Five series are now ready, 3s. each. Printed lists of 

 Contents will be sent on application to 



J. R GEEGOEY, 



3, KING WILLIAM STREET, STRAND, LONDON, W.C. 



FOSSILS from tlie RED and WHITE CHALKS of the EAST 

 RIDING of YORKSHIRE, and from the SPEETON CLAY and GAULT. 

 On sale at Edward Tindall's, Old Guildhall, Bridlington. 



TO STUDENTS AND GENTLEMEN FORMING COLLECTIONS. 



FOSSILS from the CHALK MARL and GHEENSAND 

 DEPOSITS, can be obtained at moderate prices of 



Mark Wm. Norman, Ventnor, Isle of Wight, 



