
          376

Peat contains practically no potash
salts or phosphates - Sach's Physiology
p. 262.  Try growing peach trees in
this.  Will they contract "yellows"?  The [They]
should according to the theory of
Profs. Goessmann & Penhallow.

Sachs say that he bored holes in
chlorotic trees and inserted funnels
containing solutions of iron salts.  The
leaves became green in a few days.
He used only several milligrams to each
litre of water. Larger quantities poison.
Try the sulphate on peach
"yellows"!
        