CONTENTS. 



Page, 



Art. I. — Notes on the Duty of Goveroinent in periods of Famine. — 



By John F. Thomas, Esq. Madras Civil Service 206 



II.-— Observations on the Direction and Intensity of the Terres- 

 trial Magnetic Force in Southern India. — By Thomas Glan- 

 viLLE TaylOxIj and John Caldecott, Esqrs, 221 



HI.— An Investigation of the Nature and Optical Efficiency of 

 the combination of Mirrors used to augment the Illumi- 

 nating Power of the Madras Light.— By ,Capt. J. F. Smith, 

 Engineers, f, r. s » » 273 



IV. — On the Crystalline Structure of the Trap Dykes, in the 

 Sienite of Amboor: with an Enquiry into the Causes to 

 which this Peculiarity of certain Igneous Rocks is due. — 

 By Richard Baird Smith, Lieut., Madras Engineers.. . . . 287 



V. — Notice of River Dunes, on the banks of the Hogri and 

 Pennaur. — By Lieutenant Newbold, a. d. c. to Maj.-Gen. 

 Wilson, c. b 309 



VI. — Extract of a Letter from Captain J. F. Smith, Civil Engi- 

 neer, on the Table Land of Cumbaucum Droog.' — Commu- 

 nicated by the Madras Government ......... . 311 



VI L — Fifth Report of Progress made in the Examination of the 

 Mackenzie MSS., with an Abstract Account of the Works 

 examined. — By the Revd. William Taylor, Member of 

 the Madras Literary Society, &c 313 



VIII. — Remarks upon Colonel Reid's Attempt to develop the 

 Law of Storms." — By T. G. Taylor, Esq., Honourable 

 Company's Astronomer 376 



IX. — Special Report c n the Statistics of the Four CoUectorates 

 of Dukhun, under the British Government. — By Lt.-Col. 



Syk.^s, (concluded) . , 391! 



