In 1878 King published Systematic Geology , numbered Volume 1 of the Report of the Geological Exploration of the Fortieth Parallel .
Systematic Geology appeared later than all but one of the other seven volumes .
In 1878 King published Systematic Geology , numbered Volume 1 of the Report of the Geological Exploration of the Fortieth Parallel , although it appeared later than all but one of the other seven volumes .