Not Labelled
A graph labelled "Table showing number of labourers and contributions through 'Echoes of Service' ." To the left of the slide is photographs of three mens heads labelled "Dr. J.L. Maclean"; "Henry Groves"; and "Henry Dyer".
Groves and Maclean produced The Missionary Echo in 1882 to report on the activities of Brethren missionaries in the field. This became Echoes of Service in 1885. Dyer was a prominent missionary travelling widely and contributing to the magazine.