What sort of work is Washington encouraging African Americans to do in lines 7-13 of his "Atlanta Compromise" speech?

In lines 7-13 of his "Atlanta Compromise" speech, Washington is encouraging African Americans to focus on acquiring industrial and vocational skills, particularly in agriculture, mechanical trades, commerce, and domestic service. He suggests that by developing these skills, African Americans can secure economic independence and uplift their race, while also contributing to the overall progress of the nation.