It shows the collector at the pond-side dipping up a small jar of water for examination, then shows how he captures the minute animalculae from the jar by means of a small glass tube and a magnifying glass, placing it on a slide and under the objective of the microscope. First the Green Hydra is shown; then the Cyclops, and all its internal circulation and organic movements can be plainly seen. Two species of Entomostraca follow, in the first of which attention is called to the breathing feet, and the second, a tiny bivalve, shows his skill in removing obstacles from his path. Two varieties of Water Mite, a beautiful Rhizopod and two Rotiffera complete this interesting and highly instructive reel.
—Moving Picture World synopsis