PLATE XXVIII C'^-ves Showing the fluctuotions »f index number for v,&,R and H from ths Yield table for Spruce Stand, constructed by Dr A ScWappach 



i'i.Aiii Axviii. ,„ ^y,g |jc^i,^y gf Southern part of Germany. .^.otnwpp n. 



2a 40 (0 



211 40 to 80 loe 120 



Curves, showing the fluctuations of index number for V, G, K. and H from the Yield table for 5>pruce Stand^ constructed by Dr A. Schwappach, 

 in the localities of middle ond northern parts of Germany. 



20 -to 60 ao 100 128 



311 40 60 BO toe uo 



