The author was a professor of mathematics and chemistry at Pennsylvania College in Gettysburg at the time of the Civil War. He was also the Lutheran pastor at the campus church.This book is a day-by-day account of the invasion beginning weeks before the Battle of Gettyburg. It was published in the year following the battle. The is no bibliography nor footnotes, but there is an excellent map of the battlefield.
"Originally published by Random House, Inc., as volume II of The Civil War, a narrative : Fredericksburg to Meridian"--T.p. verso.
Summary
Complete with detailed maps, Stars in Their Courses brilliantly recreates the three-day conflict: It is a masterly treatment of a key great battle and the events that preceded it-not as legend has it but as it really was, before it became distorted by controversy and overblown by remembered glory. [from the publisher]