Every college and university has a large library, and this should be examined with a view to discovering its possible contribution to national defense in war time. Aside from their functions of supplying fresh news and judgments of current events, libraries surely have a vital part in that work of organized research which is behind Germany's scientific and industrial efficiency. Successful research rests as much upon adequate and well-organized book resources as upon laboratories and trained men. The plain and immediate duty of a college situated near a cantonment, or having a portion of its student body enlisted in a camp, would seem to be to build up a military library adequate as a center of military information for those who are studying new methods and instruments of attack and defense. Such a library would be a technical library assisting the large number of specialized schools and fields of training for officers and men in every branch of the service and even in different duties in the same branch. Medical libraries of colleges should be available, with new and important material on military hygiene, medicine, sanitation, and surgery, and this material should be given the widest publicity with reference to its usefulness for the military, medical, and hospital corps. The college library might well lend to a cantonment a member of its library staff for the development of not only a technical library but also a general reading library for those soldiers who desire only general reading. The geological department of a college can help in deciding on foundation conditions for army-work constructions, on the location of camp sites with reference to topography, drainage, and water supply, and on the location of trenches with reference to dryness, underdrainage, and rock deposits. Such a department can participate in the study of earth vibrations in connection with heavy artillery discharges for the accurate determination of the distances of enemy batteries. It can also help the government in giving more exact training to young men in the interpretation of geological and topographical maps. It is obvious that the technical college and the technical institute may render the greatest government service through its faculty and student body. Armour Institute of Chicago has a large number of its graduates and older students in concerns which are producing munition supplies and war-ships. Many have entered the signal service, and a large class in marine engineering has been specifically organized to prepare men for service with the government.