Addition to the Library.

Dr. Denman W. Ross, of Cambridge, has very recently presented the Harvard library with an exceedingly valuable collection of works on the early history of institutions. This gift numbering about three hundred volumes, can be considered as a supplement to a more valuable and a larger collection of works on the same subject, given to the library by Dr. Ross about one year ago. The former incomplete collection is now rendered almost perfect, and the library now possesses more works on this subject than any other library in the country. The books treat principally of the history and of the early political, civic and industrial institutions of mediaeval Germany, and will undoubtedly prove a great aid to students of history, political economy and kindred sciences.