Given this paragraph about the original church in Guston in 1892, what were the two ways that were used to announce the beginning of services?

Context: English congregationalist preacher Rev. William Davis found some success evangelizing the miners and their families after establishing a church in Guston in 1892, the only one in the Red Mountain Mining District. The church had not only a bell but also a steam whistle to announce when services were commencing. Davis had earlier tried unsuccessfully to establish a church in Red Mountain Town. The day after the Guston church opened, the commercial district of Red Mountain Town was destroyed in a fire, with some local residents suggesting it was the result of "divine intervention". Between 1941 and 1945, the by-then abandoned Guston church had begun to tilt heavily, eventually collapsing.

Answer: The church used both a bell and a steam whistle to announce the start of services.