N.Y. Times Index - 1950s

April 5, 1954: "Health Units Call Polio Safe." (27:7)

April 13, 1955: "Disease Ancient, Its Study Modern." (21:3)

April 28, 1955: "One Firm’s Vaccine Barred; 6 Polio Cases Are Studied." (1:2)

May 1, 1955: "Experts on Polio Say Innoculations Should Continue." (1:1)

May 4, 1955: "Polio Immunity For Life Sought." (1:1)

May 8, 1955: "Turmoil Over Salk Shots." (68:5)

May 8, 1955: "Don’ts Are Given on Polio Vaccine." (68:6)

May 9, 1955: "U.S. Still Supports Vaccine: Week’s Stay Seen." (1:8)

May 9, 1955: "Texts of Surgeon General’s Statements on the Polio Vaccination Program" (14:2)

May 12, 1955: "Eisenhower Sees Polio’s Early End with Salk Shots." (1:1)

May 15, 1955: "Butler Charges ‘Mishandling’ of Vaccine, Says Early Check Could Have Averted It." (59:2)

May 15, 1955: "Polio Questions." (IV, 1:7)

May 15, 1955: "Visit to a Polio Vaccine ‘Farm’." (VI, p.10)

May 16, 1955: "378,000 Shots of Vaccine Freed for 16 State Use."

May 26, 1955: "U.S. Acts to Raise Vaccine Criteria; Drug Plants Balk." (1:8)

May 29, 1955: "Two Cutter Lots Baffle Experts." (37:1)

May 29, 1955: "Polio Fog Lifts." (IV, 1:7)

May 29, 1955: "Four Editorial Cartoonists Size up the Polio Vaccine Situation." (IV, 2:2)