430 



Mr Reeks in the vicinity of the tree, has been analysed. The results 



are as follow : 



No. 1. No. 2. 



Silica 58-70 63'52 



Protoxide of iron 35-46 32-30 



Lime 0'30 0-59 



Magnesia 0'74 0'21 



Protoxide of manganese . . trace trace 



Alumina 3-40 2-85 



Phosphoric acid 0'43 0'57 



Sulphur as sulphide trace trace 



99-03 100-04 



" No. 1. was analysed by Mr. Spiller, and No. 2. by Mr. A. Dick, 

 chemists who have been incessantly engaged at the Museum during 

 the last two years and a half in the analyses of the iron ores of this 

 country, and whose great experience renders their results worthy of 

 entire confidence. Cobalt and nickel were not sought for in either 

 case, but the metallic iron enveloped in both specimens contained a 

 minute quantity of cobalt and nickel. Another piece of slag-like 

 matter, which was found on the ground near the tree, and which 

 from its external characters I have no hesitation in pronouncing to 

 be a slag, was examined for cobalt and nickel, and gave unequivocal 

 evidence of the former in minute quantity, though not satisfactorily 

 of the latter. 



" The metal previously mentioned is malleable iron. That which 

 was detached from the slag-like matter, found outside the tree, was 

 filed and polished, and then treated with dilute sulphuric acid. 

 After this treatment , the surface presented small, confused, irregu- 

 larly-defined crystalline plates, and was identical in appearance with 

 the surface of a piece of malleable iron similarly treated after fusion 

 in a crucible." 



