Microscopic Life: The World of the Invisible

Microscopic Life: The World of the Invisible

Rejissyor: Encyclopaedia Britannica Films. A study of the plant and animal life found in a jar of ordinary pond water. Illustrates and explains the difference between microscopic plants and animals; between one-celled and many-celled organisms; the meaning of colonial organization; and the various processes of food-gathering, digestion and reproduction.

https://archive.org/details/0435_Microscopic_Life_The_World_of_the_Invisible_01_43_42_00 · Public domain (Internet Archive)