CONTENTS. 



Page. 



Art. I. — Memoir on the Geology of the Neelgherry and Koondah 

 Mountains.— By P. M. Benza, Esq. m. d. of the Ma- 

 dras Medical Establishment 241 



IL— On the Tree which produces the Gamboge of Commerce. 



— By R. Wight, Esq. m. d 300 



III. — An account of the Harbour of Tuticoreen.— By R. 



Wioht, Esq. m. jy. with sailing directions for making 

 the Harbour, and a Chart in which Bearings and 

 Soundings are laid down, communicated by Lieutenant 

 Jenkins, of the 33d Madras Native Infantry 305 



IV. — A short account of the Irrigation of the Delta of Tanjore, 



formed by the Cauvery and Colleroon .. . 309 



V. — On a method of using Sir Howard Douglas's Reflecting 

 Semi-circle in Military Sketching. — By Lieutenant J. 

 Campbell, Assistant Surveyor General ...... ........ 319 



VI. — On the practical application of the Problem of the Three 

 Points in Surveying.— By Lieutenant J. Campbell, 



Assistant Surveyor General 321 



VIL — On the Granitic Formation, and direction of the Primary 

 Mountain Chains, of Southern India. — By Captain 

 James Allardyce, 23d Regiment Madras Light Infan- 

 try 327 



VIII,— The Study of Botany recommended, together with a 

 Prospectus of Dr. Zenker's Plantee Indicse.— By the 



Reverend Bernhard Schmid •..«•»....- 336 



IX.— Notes on the climate of Coorg, (with a Table).— By 

 R. BaiKie, Esq. m. d. of the Madras Medical Establish- 

 ment 333 



X. — Account of a Railroad laid down in the Vaddavaur Dis- 

 trict.... .„..., 346 



XI. — Marava-Jathi-Vernanam. — From the unpublished Mac- 

 kenzie Manuscripts in the possession of the Asiatic 

 Department of the Madras Literary Society, &c. Pro- 

 fessor Wilson's Descriptive Catalogue, Vol. 1, A. II. 

 No. 36.— Translated by the Reverend William Taylor. 350 

 XJI. — Suggestions for the more careful Registry of Meteorolo- 

 gical Observations ; with a comparison of the Barome- 

 trical Results in Madras and Calcutta, and considera- 

 tions regarding the influence of the wind on the Baro- 

 meter.— By T. G. Taylor, Esq. H. E. I. C. Astrono- 

 mer 361 



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