CAMBRIDGE.—The Cambridge University Natural Science Club celebrated its 500th meeting by a conversazione in the University Physiological Laboratory on March 12. This club was an early outcome of the development of natural science in the University, being founded on March 10, 1872. Its members are drawn from the senior science students in the University. Among the original members (nine in number) may be mentioned Dr. H. New ell-Martin, Prof. Liversidge (now at Sydney), and the late Dr. P. H. Carpenter. At one of the earliest meetings the late Prof. F. M. Balfour was elected. Two years later saw Prof. S. H. Vines and the late Prof. Milnes Marshall added to the lit of members. It is interesting to note that the first volume of —Studies from the Physiological Laboratory, Cambridge,” published in 1873, contained contributions from four of the original members of the club. At that time this laboratory, which is now large enough to accommodate easily a large conversazione, consisted (in the words of Prof. M. Foster) of “two rooms in which my lectures are given, the practical teaching of my class conducted, and the physiological work carried on.” So that the interval between the first and 500th meetings of the Science Club represents an important epoch in the history of the Cambridge Scienee School, and gives to the conversazione a special interest.