Dr Bull was probably the most influential founder of the Club and its most active member for thirty-four years. His interests in Hereford were all-embracing. He was an excellent doctor with a large practice who did much to improve the health and sanitation in the county, he was using ether as an anaesthetic only a month after its introduction to England.
His observations and articles in the Transactions were mainly biological, historical and archaeological. The Club remembers him particularly for his contributions to mycology and pomology and through both he gained national fame. The British Mycological Society looks on bull as a founder. His best known publications are The Herefordshire Pomona (1884) and Notes on the Birds of Herefordshire (1888).