Complex sentence: In 1812 Martin apparently undertook a further inquiry, supported in part by a government grant and in part by subscriptions; and issued "An Appeal to Public benevolence for the Relief of Beggars", 1812.
Split into simpler sentences: In 1812 Martin apparently undertook a further inquiry, supported in part by a government grant and in part by subscriptions. He issued "An Appeal to Public benevolence for the Relief of Beggars", 1812.