Complex sentence: Following his resignation, he became curator of the herbarium at the California Academy of Sciences and in 1885, was hired as the first professor of botany at the University of California, Berkeley (1885--1895).
Split into simpler sentences: Following his resignation, he became curator of the herbarium at the California Academy of Sciences. In 1885, was hired as the first professor of botany at the University of California, Berkeley (1885--1895).