Professor Parker's Lecture.

Professor G. H. Parker will address the Zoological Club this afternoon, at 4.45 o'clock, in the Museum of Comparative Zoology, on the subject of the sense of hearing in fishes. Experiments designed to indicate the functions of the ear were carried on by Professor Parker last summer at the U. S. Fish Commission Laboratories at Wood's Hole, Mass. These experiments gave valuable evidence on the disputed question of whether the ear of a fish acts as an organ of hearing.

The meeting will be held in Room 1, fourth floor of the museum, and will be open to members of the University.