East Malling Research Station, Kent.
Scientists inject nutrients into bark of fruit tree. C/U of woman drilling hole into tree trunk. A man passes her a pellet which she injects into the hole using large metal syringe. The nutrients will help tree grow and produce healthier fruits.
Experiments using electricity to shatter different kinds of materials.
A large power press crushes a tree trunk, a watch face and a riveted joint.
Footage of Scientist experimenting with coal dust in laboratories.
Machines which make "man-made lightning" are demonstrated.
Harmonograph recording two or more connected movements is presented at G.W.R Show.
Proposals for construction 'perpetual motion' machines - none of them works.
Road safety campaign for children in London.
Ghostly white shapes emerge against a black background - no soundtrack.