medical health officer dr. charles hastings enlisted goss's help in his crusade to improve public health. goss photographed unsanitary and overcrowded conditions for the health department, and hastings used goss's photographs as evidence in his 1911 report on slum conditions. many of goss's photographs for the health department were never published, but were used internally to identify problems, to track the progress of particular projects, or to report on new technologies and methods for carrying out the department's work. with goss as the city photographer, photographs quickly became an important resource in many aspects of toronto's municipal government.