August 3, 1948: Chambers Makes His Initial Accusation

Testimony of Whittaker Chambers

 August 5, 1948: Hiss Denies the Charge

Testimony of Alger Hiss

August 7, 1948: Chambers Provides More Details Concerning His Relationship with Hiss

Testimony of Whittaker Chambers

 August 16, 1948: Hiss Falls Into a Warbler Trap

A prothonotary warbler.
HUAC Committee members became convinced Chambers was telling the truth when Hiss confirmed Chambers's story of Alger's excitement over spotting the rare bird.
 
Testimony of Alger Hiss

 August 17, 1948: Hiss Examines the Teeth of Chambers

Testimony of Alger Hiss and Whittaker Chambers

 August 25, 1948: The Televised Confrontation

Testimony of Alger Hiss and Whittaker Chambers