This section of the book is from the "Household Companion: The Home Book Of Etiquette" book.
You should sit at a convenient distance from the table, and sit upright. Do not lean back, or tilt your chair, or stoop forward towards the table.
When grace is said at the table, observe the most respectful attention, reverently inclining the head.
Do not be impatient to be served. Should you need anything at the hands of the servants, do not order them to serve you, but request them politely, in a low, distinct tone, adding, "if you please." In declining a viand offered by them, say, " Not any, I thank you," etc.
Do not hesitate to take the last piece of bread or cake in a dish handed to you. Your host has more for other guests. When a plate containing food is handed to you, set it down before you, and do not pass it to your neighbor.