32 yearr old Norway spruce suffering from potassium deficiency. Pack Forest, Warrensburg NY. Person is Professor Ed White of SUNY.

Sven Heiberg's original potassium deficient red pine plot. See Heiberg & Loewenstein, 1958 and Heiberg and White 1951. Pack Forest Warrensburg NY

General view of plantations of white, red and jack pines. Pack Forest, Warrensburg, NY.

Sign in Pack Forest, Warrensburg NY. N.B. This notice is bound to antagonize!

"Primitive" area of white pine and hemlock ca. 50 acres. Pack Forest, Warrensburg, NY.

"Primitive "area of white pine and hemlock ca. 50 acres. Pack Forest, Warrensburg NY.

White pine 300 yrs in reserve area. Pack Forest, Warrensburg, NY.

Mushrooms stuck in jack pine foliage by squirrels (food storage?) But Twp. Englehart Management Unit.

Mushrooms stuck in jack pine foliage by squirrels (food storage?) Burt Twp. Englehart Management Unit.

Chlorotic foliage on jack pine planted in area where all organic material has been removed. Terry Twp. Englehart Management Unit.