44 Presidents Address, [Feb. 



earnestly ask the attention of every member occupied in scientific pursuits, 

 or whose study is in any way turned to these subjects, to contribute to the 

 Journal such as ma}" come within his knowledge, so that the end of the 

 Society may be better and more generally fulfilled, and that the words 

 of our Founder, viz., " The bounds of its investigation will be the 

 " geographical limits of Asia, and within these limits its enquiries will 

 " be extended to whatever is performed by man or produced by nature," 

 may be truly and faithfully carried out in their most extended sense. 



In the scientific labours of the year, we find that the Survey of India 

 has made marked progress, and has given a considerable addition to our 

 geographical knowledge of the Eastern Frontier. 



The geographical exploration of the Frontier has been pushed on 

 vigorously. All the intermediate territories occupied by the Lushais and 

 lying between the Cachar and Munipore Frontier and Hill Tipperah, left 

 undone by the parties with General Bourchier, and Greneral Brownlow's 

 columns in the previous season, have been very successfully described. The 

 Garo Hills, hitherto a perfect terra incognita, have likewise under the 

 protection of the military expedition, sent to coerce these refractory quasi- 

 independent people, been well delineated, entirely filling up the blank which 

 has so unaccountably existed for so many years in the Map of India and 

 which separated the long occupied districts Goalparah and Gowhatty on the 

 one side, from Mymensing and Sylhet many years under British rule on the 

 other. 



In the Naga Hills, the Survey has been extended to Samagiiting and 

 to the Manipur Frontier, and a few seasons more will, it is hoped, fill up 

 all the Hilly Territory subtending the Assam Valley south of the Brahma- 

 putra River. 



These Topographical Surveys have been drawn expressly for the pur- 

 pose of reproduction by the photozincographic process and thus are at once 

 issued for the use of the local officers and the public, a process which it is 

 expected will shortly be superseded by the superior photo-collotype pro- 

 cess. This advancement (to a degree hitherto unknown) in the rapidity and 

 excellence of work, must contribute much to the early production and cor- 

 rection of maps, the materials for which in these countries have been 

 obtained under the greatest difficulties which nothing, but the organization, 

 skill, and determination that has ever characterized the Survey Department, 

 could overcome, and I cannot but think that such progress is a subject for 

 the acknowledgement of our Society. 



Turning to the Trigonometrical proceedings, we find that the Pendu- 

 lum operations in India have been completed, that the pendulums have been 

 swung in Bombay, Aden, and Egypt and finally at Kew. 



The Tidal observations which Col. Walker, R. E., Superintendent G. T. 



