23rd Annual Meeting of the Histochemical Society.—
The 23rd annual meeting of the Histochemical Society will be held in Boston, on Oct 14 and 15, 1972, in the Sheraton-Boston Hotel. The meeting will consist of submitted papers and symposia on Structural Proteins, Histochemical Contributions to the Study of Human Disease, and Biogenic Amines.The deadline for submission of abstracts is Aug 1, 1972. Further information may be obtained from the Program Chairman, Dr. Sumner I. Zacks, Department for Sick and Injured, Pennsylvania Hospital, Eighth and Spruce streets, Philadelphia 19107.
Tenth International Congress of Neurology.—
Associated with the Tenth International Congress of Neurology, which will take place in Barcelona, Spain, from Sept 10th to 14th, 1973, the Research Group on Migraine and Headache of the World Federation of Neurology will hold a one-day symposium on Wednesday, Sept 12, 1973.Papers of ten minutes' duration will be delivered on the following: (1)