ON MILITARY ROCKETS. ()3 



convBya of substances which admit of, or resist, mutual com- 

 bination, are the advantages to which 1 allude, 



I am, Sir, 



Yours obediently, 



MARSHALL HALL. 



University of Edinburgh, 

 Dec, 13, 1810. 



IX. 



Remarks on Military Rockets; by Mr, Hume. In a Tetter 

 from the Author, 



To Mr. NICHOLSON: 

 SIR, ' 



|1 HE description of the military rockets, detailed in the hnprovemcnw 

 last number of your excellent Journal, affords me another <»ff-red to 



„ . . , , , , the B wrH at 



opjjortunity of recognizmg the schemes and proposals, (^j^duanct. by 

 wliich, above seven years ago, I olfered to the Board of '^i« ^"'^^•'^'^i 

 Ordnance. On this subject 1 have more to say than would 

 be proper to intrude upon your pages, which ought not to 

 be overcharged with controversial matter; but as tliis ques- 

 tion is of considerable import to myself, for reasons 1 will 

 not here explain, 1 trust to your indulgence to admit this 

 letter into th« Philosophical Journal. 



In your correspondent's communication, there are some a^fj applicable 

 monopolizing assumptions, concerning these instruments, »o missile in- 

 against which I must ertter a decided protest; partlcuiarly g^^^^.f.^l ' 

 as 1 feel my character as well as name implicated in the 

 question in all its bearings, whether it concern the rockets, 

 or, as they were originally named, the pyrotechnic ffnou**. 



The first of these sweepiijg conclusions i-s the following. 

 Speaking of rockets generally, the author ii^forms us ** of 

 thtir not having been u^ed until very recently as4mple|n«nts 

 of warfare." •., 



Now, to set this assertion at rest for ever, we havt^.oflly Ro kets u^e<l 

 to refer to the late wars \u India, under Marquis Corj)wal- j'l '/»^ "'^'S"^' 



lis ; 



