The Iowa Agricultural College/Iowa State University yearbook, Bomb (1893-1994), was published annually for the graduating classes of 1894 through 1994, with the exception of 1902. The digital collection includes the entire run of yearbooks, along with the Centennial Album.
Up until 1925, the Bomb was published by members of the junior class and called by their year of graduation – one year after the printing date. During the 1924-1925 school year, the yearbook staff was opened to students in all classes, and was called by the year it was printed. Consequently, there are two Bomb yearbooks for 1925.
More about the Bomb can be found in the Iowa State University Yearbook Records (RS 22/6/0/6). Physical copies can be viewed in the Special Collections and University Archives Department or in the library's general collections using call number LD2548 Io9b.