Four reels of unedited material. Shots of various organic things under a microscope. Also some x-ray footage and time lapse animation footage. As there are no intertitles it is impossible to say what is being filmed most of the time. Leader states that this is material filmed by Percy Smith who was responsible (with Mary Field) for many of the "Secrets of Nature" films. This is presumably material which was filmed for some of his British Instructional films used in classrooms for teaching purposes.

Spores, amoebas, minute particles, pollen, water fleas, microscopic creatures, plants, worms, plankton, bugs, spores, sundew, cells, blood, corpuscles, growth, insects, ferns growing through time lapse photography, moths, bees, thistles, butterflies, pollination, wasps, dodders, growing shoots, spring, hops, Venus flytraps, ladybirds, ants, flowers, clover,

Note: some of this material was used in Secrets of Nature films "Sundew" and "The Strangler" Some of the images are kind of psychedelic and groovy!