284 SIR RODERICK I. MURCHISON'S ADDRESS. [May 23, 1859. 



from the observations of tlie Astronomer Eoyal of Scotland on 

 the optical, atmospheric, astronomical, and physical phenomena, made 

 at great altitudes on this volcanic mountain. We have particularly 

 to thank him for his topographical descriptions, and for producing a 

 striking relief map taken from a model prepared by Mr. Nasmyth, 

 after determinations of the author, which reminds us of maps of the 

 surface of the moon. 



The works produced during the past year by our excellent car- 

 tographer, Arrowsmith, are : — 1st, A Map of the Provinces of British 

 Columbia and Vancouver Island, with Portions of the United States 

 and Hudson Bay Territories, compiled from original documents, 

 showing also the various Passes across the Eocky Mountains ; 2ndly, 

 a Map, in eight sheets, of the Island of Ceylon, constructed from a 

 base of Triangulations and corresponding Astronomical Observa- 

 tions, during his employment on the staff of the colony, by Major- 

 General John Eraser, late Deputy Quartermaster-General, recon- 

 structed, incorporating a great number of original documents, and 

 connected with the Great Survey of India ; 3rdly, a Map of the 

 Eastern Half of Australia, constructed from official and other 

 original documents, adjusted to the Maritime Surveys of Flinders, 

 King, Wickham, Stokes, Blackwood, Stanley, &c. This map, 

 which is on six sheets, will show the route of many Australian 

 travellers. 



Mr. Arrowsmith is also about to publish other Maps, including 

 a Map of the World, on two sheets, showing by repetition the con- 

 nection between England and the Australian Colonies, both by 

 the Cape of Good Hope and Cape Horn. 



Having called your attention in days gone by to the improve- 

 ments made in cartography by Mr. A. Keith Johnston, and to 

 his zealous and successful endeavours to lay before his country- 

 men, on maps, all the chief data of physical science, I have now 

 the satisfaction of adverting to his last important work — a new 

 General Atlas. Fifteen years having elapsed since he published 

 his National Atlas, the author felt that the time was come for the 

 production of an entirely new work, which should embrace all the 

 recent discoveries and all the territorial changes. In accomplishing 

 this task, Mr. Johnston has succeeded in placing before the public 

 a series of sheets of each region on a very convenient scale, and 



chapters — Geology and General Topography, Botany, and Miscellaneous Observations, 

 including the author's ingenious method of eliminating the angular motions of a ship 

 at sea, to which I alluded last year. 



