U ADR ANGLES 



VOL. 25, 1913, PL. 10 



^TADV 3ARfiCrOGA 

 /5S SCHUrL E.RVIL LE. 



' THE HUDSON' CHAh\^ 



-#3* - o O 



-^]f/ono/ BoUffdry 



45 -IS 



4^3-30' 



V£ 



E^CL 



900 

 600 

 700 

 6CO 

 30 

 400 

 300 

 Zoo 

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 3eA L.E\/e.L. 



//s /. .far/^cA//^ . /y/S, 



NECTICUT VALLEY. GRAD 



