Original sentence: He remained with  Burke and  Wills as far as the Darling River at Bilbarka, before returning to the settled districts of Victoria.He was, however, allowed the use of the buildings of the signal station on Flagstaff Hill creating the Flagstaff Observatory for Geophysics, Magnetism and Nautical Science at what is now  Flagstaff Gardens in Melbourne, Australia.In 1867 he brought out his Discussion of the Meteorological and Magnetical Observations made at the Flagstaff Observatory, and in 1869 appeared his extremely valuable Results of the Magnetic Survey of the Colony of Victoria--1858-1864.Neumayer joined the Expedition at  Swan Hill in order to conduct his magnetic observations.Research topics are permanent observations of the earth's magnetic field, seismological registrations, infrasonic, meteorological and air chemistry investigations
Edited sentence: He remained with Burke and Wills as far as the Darling River at Bilbarka, before returning to the settled districts of Victoria.He was, however, allowed the use of the buildings of the signal station on Flagstaff Hill creating the Flagstaff Observatory for Geophysics, Magnetism and Nautical Science at what is now Flagstaff Gardens in Melbourne, Australia.In 1867 he brought out his Discussion of the Meteorological and Magnetical Observations made at the Flagstaff Observatory, and in 1869 appeared his extremely valuable Results of the Magnetic Survey of the Colony of Victoria—1858-1864.Neumayer joined the Expedition at Swan Hill in order to conduct his magnetic observations.Research topics are permanent observations of the Earth's magnetic field, seismological registrations, infrasonic, meteorological and air chemistry investigations