ROCKET SHELL for 16-pb. M.L.R. 
(Scale £.) 
The g U n-cotton, repre¬ 
sented by white space, ee , 
next to the metal of the 
shell, does not extend to 
that portion of the shell 
where the composition is 
not symmetrically in the 
axis and the hollow cir¬ 
cular; so that it will not 
explode till all the com¬ 
position is burned. 
Section CD. 
