mji POTASSIUM AND SODIUIVI. ^7 



Office of Ordnqnce, 

 «< SIR, Oct. 22, 1806. 



" In compliance with the request, contained in your Ict- 

 ♦* terof the 14th instant, I herewith transmit the Sketches 

 ** and Descriptions of your projectiles, which were submitted 

 •* to a Committee of Colonels and Field-officers of Artillery, 

 " in October, 1803." 



(Signed) R. H. Crew^, 



Trusting I shall not be teased with any more amnymoui 

 ohs>ervutions on this or any other attempt to vindicate my 

 claim, I shall, for the present at least, quit this subject. 

 I remain. Sir, 

 Your obliged and obedient servant. 

 Lovg Acre, JOS. HUME. 



December ) 7, 1810. 



Remarks on the Nature of the new Metals^ Potassium and 

 Sodium, in Answer to Mr, Dalton. In a Letter from a 

 Correspondent. 



To Mr. NICHOLSON. 

 SIR, 



Jl HE great ingenuity displayed in Mr. Dalton's new jyj,. Dalton%' 

 System of Chemistry, of which the second part baa just theory of che» 

 appeared, must strike every one who reads it; and should ^^^^^^* 

 his ideas prove hereafter to be really consistent with fact, 

 the science will indeed have attained a "happy simplicity". 

 It is not my intention to enter into a discussion of the ge- 

 neral merits of Mr. Daltou's Theory, but I wish to call 

 your attention, and, through the medium of your valuable 

 Journal, that of the chemical world at large, to that part 

 of the work alluded to, which treats of the nature of the 

 bodies obtained from the fixed alkalis. ' •^^^^•' 



F 2 Mr. 



