ADVERTISEMENTS will be inserted at the rate of 53. per inch for 

 each insertion. A discount of 25 % if booked for the year. All 

 charges must be paid in advance. 



Reprints. — Authors desiring additional copies of their papers, may have the same 

 on pa}-ment of printer's charges, if ordered on return of proof. 



FOR SALE: 

 A COLLECTION OF MOLLUSCS IN ALCOHOL. 



A Collecior, who is shortly leaving England, wishes to part with 

 that portion of his Collection preserved in Alcohol, which comprises 

 very fine specimens of various species of the following genera of 

 Molluscs : — 



Avion, Amalia, Geomalacus, Macroclilaimjs, Helicarion, Omalonyx, 

 Janella, Parmarion, Urocydus, Vitrina,Veronicella, Testacella, Limax, 

 Agriolimax, Pledopylis, Helix, Limncea, Vivipara, Archidoris, Dendro- 

 notus, etc., in all about 120 Specimens. 



Price £5. 5s. Od. 



Address " MALACOLorTiST," c/o the Editor of this Journal. 



Museum Humfredianum. — The undersigned would be glad to 

 exchange for or purchase a copy of the "Museum Humfredianum," being "a 

 catalogue of the large and valuable museum of Mr. George Humphrey, con- 

 taining many thousand curious subjects (including shells) on Natural History." 

 8vo, London, 1779. (This is possibly a sale catalogue.) 



W. M. WEBB, F.L.S., 2, The Broadway, Hammersmith, London, W. 



