PROCEEDINGS OF THE POLYTECHNIC ASSOCIATION. 



415 



through the ports, and so arranged that the guns brace each oth(>r, and 

 that the inertia of the entire structure is made available to resist recoil. 

 It shows, also, the means adopted to facilitate the working and repairs on 

 the guns and turret. 



Figure 39 is a side elevation of two spherical guns, mounted according 

 to this portion of my invention. The guns may be, in all respects, like 

 that shown in Figures 5 and 6, or may be differently constructed, as may 

 be preferred. J 



u H L 



Figure 40 is a section across the turret, on the line SS, in Figure 39, 

 with certain parts removed. Figure 41 is a horizontal section, on the line 

 TT, in figure 39, with certain parts removed. 



