ProcRD. S..N.S..V0L6. 



Plate IX. 



m 



m. 



1 



1 



I 



1 



ft 



ELEVATION A 



ELEVATION B. 



o--- 



-o 



PLAN B. 



T T T T r r T 



o==»==o 



j 1 1 1 J I J 



PLAN A. 



cut \ Somi 



