His successor at the Lyceum was Theophrastus, and he wrote many valuable books describing plant and animal life, and one of the very first works on mineralogy, with descriptions of ores and minerals known to the world at that time.
His successor at the Lyceum was Theophrastus, and he wrote valuable books describing plant and animal life, and his works are regarded as the first to put botany and zoology on a systematic footing. He also produced one of the very first works on mineralogy, with descriptions of ores and minerals known to the world at that time.