Rare 1950s scientific American articles - Several On Viruses

Description

Original 1950s scientific American printed articles on viruses
Unique rare set of 1950s scientific American articles on viruses.
Each pamphlet is several pages.
The Physics of viruses, Ernest Pollard
The Multiplication of bacterial Virus, Gunther Stent, 1953
Rebuilding a Virus, Heinz Fraenckel- Conrat, 1956
Viruses, F.M. Burnet, 1951
The Mutation of Viruses, C.A Knight and Dean Fraser, 1955
Proteins, Paul Dory, 1957