«CIENTiriiC NEWS. 421- 



Such, Sir, are the facts noticed by Mayovv, which appeared 

 to me so striking, that I have been induced to send them to 

 you, to make hereafter what use of them you please. I have 

 avoided, as much as possible, introducing the absurd theories 

 by which he endeavoured to account for the facts he ob- 

 served, and which do not in the least affect the truth of the 

 observations themselves; and I have sent them mostly in his 

 own language, that you might give them in that, or in an 

 English dress, as you think fit, as well as for the purpose of 

 presenting them to you in the most authentic form. 



E. D. 



X. 

 SCIENTIFIC NEWS. 



New Map of Scotland. 



.R. Arrowsmith has been for more than a year engaged in New Map oi 

 constructing a new map of Scotland, from original materials, Scotland. 

 to which he has obtained access by means of the Parliamentary 

 Commissioners for making roads and building bridges in the 

 Highlands of Scotland. 



The elaborate military survey of the main land of Scotland 

 made in the middle of the last century, and preserved in his 

 majesty's library, has been copied, and reduced for the pre- 

 sent map ; and the several proprietors of the Western Islands 

 have communicated all their surveys, most of which have been 

 very recently executed. 



In addition to the astronomical observations heretofore 

 known, many latitudes and longitudes have been purposely 

 ascertained for this map, as well as a considerable number of 

 magnetic variations. 



This map is to be accompanied by a memoir, explanatory 

 of the several documents on which it has been constructed. 



The publication may be expected to take place in January 

 or February next. 



3Jedical 



