Professor L. S. Marks of the Engineering School has recently completed a new edition of the "Mechanical Engineers' Handbook" first published in 1916. The original edition became known as ho "engineers' bible", and more than 65,000 copies were sold. Dean Hughes '94 of the Engineering School when asked to comment on the book said: "It is the best book of its kind ever written."

The book contains all the technical information that a mechanical engineer in general practice is likely to desire, presented, in the most concise form possible, by specialists whose experience permits them to write authoritatively. It is intended for those in search of specific information.

"Shenandoah's" Builder Contributes

The 15 sections into which the book is divided treat subjects ranging from heat and mathematics to transportation and electrical engineering. More than 50 distinguished men have contributed chapters on their specialties. The chapter on aeronautics has been written by J. C. Hunsacker, an assistant naval constructor of the United States Navy and builder of the dirigible "Shenandoah". E. V. Huntington '95, Associate Professor of Mathematics at the University, has written two of the chapters on mathematics. Two chapters dealing with internal combustion engines, have been written by Professor Marks himself, a subject on which he is a specialist, as well as a chapter on building constructions and equipment.

About one-third of the contributors to the "Mechanical Engineers' Handbook" are college professors. The remainder are largely practising engineers affiliated with the government or with special companies.