To the friends of human liberty: : We the undersigned citizens of Massachusetts thankful for the abolition of American slavery, view with horror the fact that five hundred thousand of our brethern groan beneath the chains of slavery at our very doors, in the island of Cuba. ... It is therefore resolved, that we hold a public meeting, at the Menonian, on Monday evening, December 23d. [1867], to take the necessary and proper action to advance the cause of universal freedom ..