Safety first. (1937)
Availability of videosources
Needs clarification of possibility of digitizing in HD.
The series "Secrets of Life".
Horses grazing on a snow-covered field.
Microfilming: the seed of the plant underground in hibernation.
Spring stalk grows from a seed, climbs up to the surface of the ground, clears a skin, spreading leaves.
Spring forest, creeping across the sky clouds.
Flower to blossom.
Self-protection of plants against external influences.
Crocus opens the petals in the morning and closes at night.
Blooming wild rose bush.
The methods of self-protection of plants against cold, rain and sunlight.
Daisies close petals.
Dandelion, his struggle for existence.
A man mows dandelions, but he has very long roots, and it grows again.
Nettles and its means samozaschityy - thorn poison contained in it / under the microscope /
Key wordsEngland, plant