| On the 24th of April, 1676, this observer saw for the first time some infusorial animalcules. |
| Since animalcules were visible only under a microscope, most of the city's residents had neither seen nor heard of them. |
| Three weeks later, on April 24, 1676, he discovered an incredible number of very little animalcules, marking the first sighting of bacteria. |
| Blood-like waters are sometimes produced by a rapid evolution of infusorial animalcules. |
| The Monads are other infusorial animalcules which make an early appearance in vegetable infusions. |
| Most naturalists have now agreed to place among the Bryozoa certain species of animalcules which long remained imperfectly known. |
