RECOMMENDED RAILROAD READING. Just finished J. W. Orr's Set Up Running (details or comparison shop -- looks like the press run was a bit optimistic,) a tribute to Orr's father O. P. Orr, who retired from 45 years on the Pennsylvania Railroad with a perfect service record, despite some close calls after World War II. Most of that service was on the secondary freight lines in the Susquehanna River Valley northwest of Harrisburg. The elder Orr took quite an interest in getting the best out of his engines, and some of the firemen taxed his patience, particularly after the automatic stoker came into use. But as long as the train got over the road without a steam failure that blocked the main line, he had no cause for official complaint. On p. 261 is a useful insight for professors: ""[Students] and locomotive engineers both fell into the same types of categories, those at the top of the class, the A students; those that were average; those that were lower in the class but tried; and those who might have had higher grades but did not care. The only time the latter group was interested was when report cards [or pay day] came out. ... Then too there were some engineers who could run an engine capably but couldn't handle a train properly no matter how hard they tried. For them, running a train proved to be a frightening experience." Comparative advantages, even on the branches of the Standard Railroad of the World.