Microscope shots of spirogyra and vampyrella lateria.
A man in a white coat puts something on a piece of glass to go under a microscope. C/U of glass being placed under the microscope. Intertitle reads: "Here's a specialist on Vampires - not the kind you generally read about, but the microscopic sort - "
He looks into microscope and we are shown what he sees. Some spirogyra and vampyrella lateria - alias the "Little Redheaded Vamp". The vampyrella feeds off the spirogyra.
Was a Pathe Pictorial item in issue 593.