Serum It must be potent. It must be aseptic. It must be uniform in therapeutic activity. These are the standards to which, at the outset of our career as biological manufacturers, we determined that our Antidiphtheric Serum should conform. How well we have hewn to the line let the record of our antitoxin show: In eleven years, during which we have marketed millions of doses, our Antidiphtheric Serum has never caused a fatality. During the same period of time it has saved more lives than any other single therapeutic agent. Discriminating physicians our Diphtheria Antitoxin exclusively. Antidiphtheric Serum (P., D. & Co.) is supplied in bulbs of 500, 1000, 2000, 3000 and 4000 units. We protect you against loss by accepting unused Antidiphtheric Serum in exchange. Our "ready to use" Serum Syringe is equipped with finger-rests. The container is hermetically sealed at both ends. The needle is separately wrapped in sterile paper. No other similar apparatus is co practical and efficient. The Alienist and neurologist NY ST. PETERSBURG, RUSSIA; SIMLA, INDIA; TOKIO, JAPAN G. NSAS CITY, |