The ladies' book of etiquette, and manual of politeness

What should you do if you notice a stranger's dress is tucked up at the back? What are you meant to say if you are offered food you don't like at a dinner party? And what ought you to wear if you're invited to a ball? If these questions baffle you, fear not! For help is at hand in the form of 'The Ladies' Book of Etiquette and Manual of Politeness'.