 Whereas on the first album, "Grand Opening and Closing", Dan Rathbun handled the mastering (in addition to producing, recording, and mixing), on Of Natural History the mastering duties are handled by Justin Weis, who mastered the album at Trakworx, San Francisco.All the tracks on this album were produced by Rathbun & the other members of the band, except for "Phthisis", which was produced by Scott Humphrey, and recorded at the Chop Shop, Hollywood in May 2004; Chris Baseford engineered the recording sessions, while Garry Raposo and Vincent Piette assisted in engineering.Like with the first album, this album again marks the transition from one drummer to another