"No," replied the dean; "it being Saturday, there have been few of them here, and we have sent for none, so that the loss might be kept secret until we determine on the motive."
"The Mermaid of Druid Lake and Other Stories"
Charles Weathers Bump
At first thought you might imagine that all you would have to do would be to take the difference between the L.A.T. of the morning sight and 24 hours, calculate the distance the ship would run in this time and from that determine the longitude you would be in at noon.
"Lectures in Navigation"
Ernest Gallaudet Draper
This will determine how much, if any, dragging has taken place.
"Lectures in Navigation"
Ernest Gallaudet Draper