Refuring to the annals materials about monitoring entomoplily animalcule, the paper carries assess through the the status quo of monitoring exno-organism.
The biggest of which " shot through the water (or spittle) like a pike does through the water." What he had discovered in the plaque from his teeth—the " animalcules" —were bacteria.
And it may be asked what advantage, as far as we can see, would it be to an infusorian animalcule—to an intestinal worm—or even to an earth-worm, to be highly organised.
Using microscopes of his own design that could magnify up to 270 times, he examined a drop of water from a nearby lake and found it teeming with tiny creatures he called' animalcules'.