-- /; 



i _ ^y% 



'o * P*. *:>:: 



\O& . 'o *o ' * t & * &\ o ". c^ ' &* ' ' e ' ' o, "_* ^ ^x! ^. 



\ 



Fig. (16) System No. 3A. 



This form of construction is gaining in popularity every day. A flat ceiling is attained. It 

 is adaptable to the first and second floor of stores where the partitions are not permanent but 

 are subject to change at any time and the ceiling must present a flat surface. It is adapted to 

 strictly fireproof buildings. 



s * flB*. ;. .- ,'.-:; ;^1- : -. : : \ ' .'. 'fiswf\* :.'".'-'."' 

 *;*. .* < / , '* 1 / : \* ^//7^^v~ /~^////s?&.'* *\ \ * .*. 



Fig. (17) System No. 3B. 



This is a modification of system No. 3A, where beam protection is not necessary. The ad- 

 vantage of this system, like that of system No. 2 A, is that it lends itself to economy in forms 

 and speed of erection. 



29 



