photography, micro-cinematography and animated sequences of mold, growing on household food such as cheese, spreading in flower-like patterns described by Total Film as "hypnotic, like a living lava lamp pulsing across the screen." "This extraordinary work of art and science, beautifully entwined," is described by Luke McKernan of The Bioscope, "as close to that of avant garde animators of the period as it is to the plain exposition of science lecture." The film was included on the 2010 BFI DVD Secrets of Nature: Pioneering Natural History Films. References External links Secrets of Nature on British Pathé British black-and-white films British silent short films British short documentary films