Films produced by Pro Patria Films

The life cycle of the rose aphid (Macrosiphum Roseus).

'Adventures of Boy Scout patrol.' (British Film Catalogue)

A short black-and-white silent documentary film featuring the sexual elements of pollenation in Dandelion, Globe thistle, Daisy, Cornflower, Carline...

Time lapse photography of the broad bean flower unfurling. Released in a silent (1929) and sound (1930) version.