Published a number of notes on Coleoptera in ERJV. and Trans. City London ent. nat. Hist. Soc. from 1891. Most are accounts of collecting trips in and around London, ie. Richmond, but some were farther afield eg. the New Forest, Sudbury, West Wickham, etc.. Heasler added Corticeus linearis (Fab.) to the British list, taken at Oxshott. (MD 3/03)