Contains articles written by Bull regarding architectural practice and building techniques. The technical writings focus on building in cold climates and seismic concerns, while the other writings discuss the current state of practice. Also included is a folder containing articles and correspondence about a 1965 research project focusing on psychedelics and architectural design.

Contains design documents, correspondence, photographs, and drawings. While most of the projects are Bull’s early residential and cabin projects, some of his later commercial work is included. The projects include work done independently and with BFVS, BVS, and BSA. Many additional project-related files can be found in the previous series under clippings, photographs, awards, and correspondence, and are listed in the project index.

Contains design documents, correspondence, photographs, and drawings. While most of the projects are Bull’s early residential and cabin projects, some of his later commercial work is included. The projects include work done independently and with BFVS, BVS, and BSA. Many additional project-related files can be found in the previous series under clippings, photographs, awards, and correspondence, and are listed in the project index.