Of the progress of manners and society.-- Of the influence of physical and moral causes on the human mind.-- Remarks on the history of superstition.-- Of certain moral prejudices.-- Observations on the effects of civilization, and the character of the present times.-- Of the invention of language.-- Of alphabetical writing.-- Miscellaneous observations on the history of the female sex.-- Of the theory of government.-- The advantages of the republican form of government compared with those of monarchy.-- Of the principles of morals.-- Miscellaneous observations on the atheistical system, and on the morals of the ancients.-- Of religious establishments.-- Of education.-- Of penetration and forefight.-- An impartial inquiry into the reasonableness of suicide.-- Of slavery and the slave trade.-- Of certain causes which may prove subversive of British liberty 32