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Art. I.— Fourth Report of Progi-ess made in the Examination of 

 the Mackenzie MSB., with an Abstract Account of the 

 Works examined. — By the Rev, William Taylor, Member 



of the Madras Literary Society, &c » , . 2l5 



II. — Remarks on the practical utility of the Sympiesoineteras a 

 Marine Instrument, deduced from a series of Observations 

 made with it during a Voyage from England to India. — By 

 Richard Baird Smith, Lieutenant, Madras Engineers. . 305 



III. — ^Description of a Raft for saving Shipwrecked persons. — 



By Lieut. Congreve, Madras Artillery, 327 



IV. — Plan of a Machine for dredging the Paumban Passage. — 



By Lieut. Congreve„ 328 



V. — Observations on Suspension Bridges, with a Plan. — By 



Lieut. C. C. Johnston, Madras Engineers. 329 



VI. — On the Lateritic Formation. — By John Clark, Esq-, m. d. 



Asst.-Surgeon H. M. 13th Dragoons. . . 334 



VIL — Memorandum relative to an ancient Cemetery situated 



about 11 miles N. W. of Madras .............. 346 



VIII. — Captain Underwood's Corrections of an Error in his Pa- 

 per on Suspension Bridges ...... 347 



IX. — Report on the Tea Plant of Upper Assam. — By William 



Griffith, Esq. Assistant Surgeon, Madras Establishment — 

 late Member of the Assam Deputation 348 



X. — Proceedings OF Societies 370 



XI. — Horary Meteorological Observations made at the Equi- 



noxes and Solstices, agreeably with the suggestions of 

 Sir JohnHerschel 397 



Meteorological Journal kept at the Madras Observatory, — By 

 T. G. Taylor, Esq. H. E. L C, Astronomer 399 



