Now we see it -- Now we don't -- Economics, politics, and religion: Stuart conflicts with Parliament -- Civil war approaches -- The intersection of class and gender politics -- The Boyle family's religious and class politics -- More class and gender politics -- Boyle's gender politics -- Boyle's background reading -- Boyle's hermeticism, hylozoism, and radical politics -- Boyle's concern over the sectaries -- Boyle's objections to hylozoism -- Experimental support for the corpuscular philosophy -- Boyle's law of gases -- The production of an alternative law -- Methodological considerations -- "The data alone proved Boyle's hypothesis" -- Good science.