There exist totally different ways of learning and knowing among people.
Some of us can visualize things -- I cannot. We all have different talents
to different degrees; it may also have to do with single-mindedness.
 
Some of my greatly admired sheller-friends have nearly photographic
memories.  I  have a very poor visual memory (a major handicap for a
sheller); I am better at recognizing the (Latin) name  than anything else;
Gary Rosenberg can do both...
 
And then, there is an effect from aging (not beneficial!). After a while,
there remain only two kinds of shells: those whose name I've never heard or
seen, and those whose name or appearance I can't recall  :-)))
 
 
 
John Wolff
2640 Breezewood Dr.
Lancaster, PA 17601, U.S.A
717- 569-6955 (voice)
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