617 



FIQ. 2.. Dome height vvith -n me. ^mm. f>Kn raftt^t 

 f«^M« SPffeo :- Xf FRAmes /s>e<.. 



^ 



cortroot^s Per FROM 6 s N<?:- 



fo JM 3o ^o 50 60 •'ee-r 



Fl<«. 3. CHAK<ie OF DO(V)6 COMTOOB. vyt-TH Tiwe. 



