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.

Staphylococcal synovitis in turkeys.

Submitted in Poultry Disease Essay Contest 1962.

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.