Two Tell Of $900 Public Market Bribes. O'Malley Revokes Permits, Drops Aide. Brown Calls It Terrorizing Winesses. Meyer Counsel Plan Suits; Confer Today On Steps To Protect Witnesses From 'intimidation.' Inspector Winters Named One Dealer Says He Paid Him $450. Another Tells Of Refusing $1,000 Demand. Hylan Defends O'Malley Crowd Hisses. Committee And Cheers Commissioner As Session Ends In Uproar. Legal Steps To Protect Witnesses. Tells Of Refusal To Pay $1,000. Mayor And O'Malley On Stand. Day Told Of Irregularities. Hylan Would Enlarge Department O'Malley Questioned At Length. Check Put On Sales Of Leases. Talks To Department Secretary. Tells Of Offering $1,000. Says He Agreed To Pay $450. Asked O'Malley For Permit. Walker Questions Witness. Heineman Takes The Stand. Asks O'Malley For Permit. Hears Winters Wants To See Him. Price Reduced To $500. O'Malley Gets Job For Seller. Bribe Paid To Unknown Man. The Unknown Telephones Him. Permit Ready In Two Days. Yonteff Fails To Remember. O'Malley Asks To Be Heard.