This section is from the book "The New Cyclopaedia of Domestic Economy, and Practical Housekeeper", by Elizabeth Fries Ellet. Also available from Amazon: The New Cyclopaedia of Domestic Economy, and Practical Housekeeper.
Put them alive, with their claws tied together, into the water when boiling hot, and keep it so until the fish' is done, which, if of a pound weight, will take about a quarter of an hour, and if larger will require not quite the same proportion of time, for if boiled too long the meat will be stringy. Many people are shocked at the apparent cruelty of thus killing them, but death takes place immediately, and life cannot be taken away without pain.
When sent to table to be eaten cold, the tail and body should be split from
'end to end, the claws cracked, but not unshelled, and the meat may be made into salad, or mixed in such manner as each person pleases, and many persons add a teaspoonful of white powdered sugar, thinking that it gives a mellowness to the whole. It is scarcely necessary to mention that the head of a lobster, and what are called the "lady-fingers," are not to be eaten.

Lobster as served.
 
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