I emptied the tubes and washed them, cleaned the scions
in warm water, replaced them and refilled the tubes with pure glycerine.
I submerged a thin, zinc tag, stencilled with the varietal name and bent
to conform with the contour of the tube, inside of each one as a name
plate which could not easily be lost or removed. I also labeled each
cork with the name of the variety enclosed so that any one of them
could be located when looking down at a nest of tubes in a vertical
position.
In order to display these preserved specimens at illustrated lectures, I
had a rack made of redwood, of a size to hold twenty tubes. The tubes
could easily be taken from the rack for closer observation by members of
an audience. I find this to be an interesting adjunct to various nut
culture exhibits I make in trying to promote nut culture education.
Since I was able to identify my unlabeled, hickory grafts by means of
this catalogue of submerged scions, I consider it of great practical
worth. At the present time, I have about 50 hickory specimens, a good
catalogue, although not a complete one. I see no reason why the same
thing could not be done with black walnut or any other kind of nut
scions.
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