Date: 12/23/1999 7:18 PM Subject: File No. S7-24-99 Greetings  -- I learn with interest proposed changes which might work to weaken the rules governing short selling. I  oppose any change which would make it easier for predatory market manipulators to damage investors, investments, public companies, or any market. I believe that I've seen the destructive influence at work.  I believe that I've also felt it. I feel that sufficient flexibility already exists regarding short selling. Please do not consider any action which would put the small investor at an increased risk. I appreciate this opportunity to comment on the proposed rule change concept release. Please feel free to contact me if I might be of assistance to you in these regards.                     Very truly yours,                       James S. Nasby