Certainly no student of the University who desires to understand the great advances made in the photographic art of recent years, and to enjoy a rare opportunity for comparison of interesting geological forms from various localities, should fail to visit the photographic exhibition of the Geological Department, at present being held in Massachusetts Hall. Regarded from the standpoint of photography, the various portions of the exhibition are of unequal merit. The fine mountain-work of Sella and of Jackson rather casts into the shade the remainder of the collection. Yet the subjects of all the photographs are so interesting, that all will repay long and careful study.

F. L. WALDO.