Regulations for the sale of viruses, serums, toxins, and analogous products in the District of Columbia, etc., approved Feb. 21, 1903.

At head of title: Treasury Department, U. S. Public Health and Marine-Hospital Service.

Rules and regulations relating to viruses, serums, toxins and analogous products, and to certain organisms and vectors, effective March 1, 1949.

Mode of access: Internet.

The toxins and venoms, and their antibodies,

Mode of access: Internet.

Cellular toxins;

Mode of access: Internet.

Microbes & toxins /

Mode of access: Internet.