primary coil windings

From: 	Kevin[SMTP:wawa-at-spectra-dot-net]
Reply To: 	wawa-at-spectra-dot-net
Sent: 	Saturday, August 09, 1997 5:15 PM
To: 	Tesla List
Subject: 	primary coil windings

I don't think I understand what the differences of primary coil windings
are besides their shape.  How does each one effect performance? Which is
best?  I haven't made my coil yet, I'm still planning everything out. 
Any info would be great.