T 



This day is published, 



RANS ACTIONS OF THE GEOLOGICAL SOCIETY, Part 2nd 



Vol. I., Second Series; with twenty -five Plates, 4to. Price 21. 2s. 

 May be had of the Booksellers, and at the House of the Society, 

 20, Bedford Street, Covent Garden. 





PHARMACOPOEIA LONDINENSIS, 



Iterum recognita et retractata, 1824, p. 6. 



. " A CID UM A CETIC UM FOR TI US," 

 vel^ 

 " Acidum Aceticum e Ligno destiUatum" 



PURE CONCENTRATED ACETIC ACID, agreeable to the Sample 

 furnished at the request of the Committee of the Royal College of 

 Physicians, may be had of the Manufacturers, BEAUFOY & CO. South 

 Lambeth, London. 



ENGRAVINGS. 



Vol. LX. A Plate illustrative of Mrs. Ibbetson's Paper On the Pollen 

 of Flowers. — A Plate illustrative of a Paper by Mr. R. Taylor, of Nor- 

 wich, on Fossil Bones from the Norfolk Coast. — A Plate illustrative of a 

 Paper by F. Baily, Esq. on the Stars forming the Pleiades. — A Plate 

 illustrative of Prof. Amici's New Sextant. 



Vol. LXI. Engravings — 1. Illustrative of Mr. Tredgold's Paper on 

 the Flexure of Astronomical Instruments. — 2. Deurbroucq and Ni- 

 chols' Apparatus for Madame Gervais' New Method of Fermentation. 



-A Plate illustrative of Mr. R.Taylor's Geological Section of Hun- 

 stanton Cliff, Norfolk. — A Plate illustrative of Mr. Tatum's Communi- 

 cation on Electro-Magnetism. 



Vol. LXII. A Plate illustrative of Professor Hare's Communications 

 on Electricity, and on the Self-acting Blowpipe. — A Plate illustrative 

 of Mr. Brunel's new Mode of Tunnelling, and of his Proposal for a 

 Roadway under the Thames. — A Plate illustrative of M. Becquerel's 

 Experiments on the Development of Electricity by Pressure. — A Plate 

 illustrative of Mr. Barlow's Experiments on Mr. Marsh's Thermo- 

 Electric Apparatus. — A Plate illustrative of Mr. Seaward's Observa- 

 tions on Suspension Chain Bridges. 



Vol. LXIII. A Plate illustrative of Mr. Gompertz's Method of de- 

 fending Ships and Fortifications; and a Cut of Mr. Seaward's Pressure 

 Gauge. — A Plate illustrative of Mr. Richard Taylor's Paper on the 

 Upper Marine Formation in the Cliffs near Cromer. — A Plate illustrative 

 of Dr. Walchner's Examination ofa new Mineral named Hyalosiderite ; 

 and of Mr. Baily's and M. Frauenhofer's Accounts of the Circular 

 Micrometer. — A Plate illustrative of Professor Hare's Single-leaf Elec- 

 trometer and improved Deflagrators. — A Plate containing two new Spe- 

 cies of Ascidia ; and Amphiuma means, a new Batrachian Animal. 



Vol. LXIV. A Plate illustrative of Mr. S. Seaward's Hydro-pneu- 

 matic Pump for compressing Gases. — A Plate illustrative of Mr. Stur- 

 geon's Electro-Magnetic Rotating Apparatus; and of Mr. Haycrait's 

 Apparatus for ascertaining the Specific Heat of Gases. 



