•* Ifr/H-l-t liritLtli 7.,,,,- t/i7/ 



Jlrsi^-huu-es of n,uu-s »f iv^/vVj/ai- dwir/i.-ni'/i.< ami i/uu/'/7f.v of surface 



^ 



M) JOO 1. 



MO SjO 600 fibO 



Spred in Feet per Mihiitr 



Imaroird W (ha: liuf':, 



