ANNIVERSARY ADDRESS OF THE PRESIDENT. XXXV 



logical Pursuits. 8vo, with two hundred illustrations. 4. Practical 

 Chemistry for Earmers and Landowners. 5. Proposals for a Geolo- 

 gical Survey, specially directed to Agricultural Objects. 6. On the 

 Geology of Norfolk, as Illustrating the Laws of the Distribution of 

 Soils. 7. An Attempt to estimate the Effects of Protecting Duties 

 on the Profits of Agriculture. 8. Supplement to the same. 9. On 

 the Agricultural Geology of England and Wales. Prize Essay. 10. 

 Notes on the Geology of the New Forest, in relation to its capa- 

 bilities for the growth of Oak, and for cultivation. 11. On the Agri- 

 cultural Eelations of the Western Portion of the Hampshire Tertiary 

 District, and on the Agricultural Importance of the Marls of the New 

 Eorest. 12. On the Southern Termination of the Erratic Tertiaries, 

 and on the Kemains of a Bed of Gravel on the Summit of Clevedon 

 Down, Somersetshire. 13. On the Erratic Tertiaries bordering on 

 the Penine Chain. In two parts. 14. The Xeythorpe System of 

 Land Drainage ; its Principles, Efficiency, Economy, and Opponents. 

 15. On the Geology of the Keythorpe Estate. 



He was in the midst of preparing another work for the press, to 

 have been entitled ' Soils, Subsoils, and Substrata ; or, The Geology 

 of Agriculture/ when, whilst walking in London, he was seized with 

 an illness which after a few days terminated fatally, on the 16th of 

 September, 1857. 



The catalogue of Mr. Trimmer's works is sufficient to show that 

 he was a most zealous, active, and practically useful geologist. When 

 first I had the pleasure of becoming acquainted with him, he was 

 distinguished as an enthusiastic advocate of the diluvian theory of 

 the drift, considering that great waves had been lifted up and carried 

 over the pre-existing dry land, scooping out channels and depositing 

 marine debris ; but this advocacy of a peculiar theory in no way in- 

 terfered with his examinations, which were always made with care, 

 and detailed with honesty. In June 1831 and January 1832, he com- 

 municated two short notices to our Society, on diluvial phaeno- 

 mena, as he then considered them, noticing the discovery of marine 

 shells in diluvial sand on the summit of Moel Tryfane, near Caernar- 

 von, 1000 feet above the level of the sea, and again, on a visit to 

 Runcorn, the discovery of marine shells in a singular deposit, forming 

 part of the banks of the Mersey. It consists of a series of beds : — 



1st. Yellow sand, with some pebbles, but no shells, 3 to 6 feet thick; 



2nd. Decayed vegetable matter, \ to 3 inches thick ; 



3rd. A bed 14 feet thick, to high-water mark, containing frag- 

 ments of new red sandstone and erratic pebbles of various crystalline 

 and other rocks, associated with a few blocks, of great weight, up to 

 a quarter of a ton ; and in this bed he found portions of shells be- 

 longing to Cardium, Turritella, and Buccinum, and he ascribed this 

 phenomenon to an irruption of the sea. 



In 1838, at the meeting of the British Association at Newcastle, 

 he pointed out the occurrence of marine shells covering the vestiges 

 of terrestrial phsenomena in Cefn Cave in Denbighshire, and again 

 alluded to his former discovery, having also communicated the re- 

 sults of both discoveries to the Geological Society of Dublin,— a body 



