Let us suppose these teachers to have reached the standpoint of the scientist who, half blind, still watches through his microscope the spontaneous movements of some particular infusory animalcule. ❋ Anne E. Montessori George (1912)
There are perhaps more than a million species of plants and animals, exclusive of the microscopic and infusory animalcules, now inhabiting the terraqueous globe, so that if only one of these were to become extinct annually, and one new one were to be every year called into being, much more than a million of years might be required to bring about a complete revolution of organic life. ❋ Unknown (1904)
I find it hard to believe that an infusory animalcule, ❋ Thomas Henry Huxley (1860)
Without uncovering what does not concern us, or counting how many species of parasites hang on a bombyx; or groping after intestinal parasites, or infusory biters, or the obscurities of alternate generation; -- the forms of the shark, the labrus, the jaw of the sea-wolf paved with crushing teeth, the weapons of the grampus, and other warriors hidden in the sea, -- are hints of ferocity in the interiors of nature. ❋ Unknown (1856)
Polygastrica (infusory animalcules); Acalephae (sea-blubbers); and ❋ 1823-1886 (1855)
Suppositions, at one time pretty generally entertained, as to the production of infusory animalcula apart from ova, have been pronounced by Professor Owen, in conformity with the result of his recent researches into the various modes of reproduction with which nature has provided these animals, to be “quite gratuitous.” ❋ 1823-1886 (1855)
These germs, multiplying themselves by fissiparous generation, will constitute a stock of animals of a low type, such as a tribe of infusory animalcules. ❋ Francis Bowen (1850)
In view of facts like these, we may surely say, that the existence of the infusory animalcules, and even of the entozoa, is conceivable, supposing they could only have been produced by parents of their own kind, and without having recourse to the anomalous and hypothetical doctrine of equivocal generation. ❋ Francis Bowen (1850)
Some sea-plants, zoöphytes, infusory animalcules, and a few of the molluscous tribe, all low down in the order of being, but important from their immense numbers and joint action, commenced their work of absorbing the carbonic acid with which the air was overcharged, and building up vast piers and mounds of stone from their own remains. ❋ Francis Bowen (1850)
Then it seems reasonable to believe, that the improved observations of future times will clear up the only remaining difficulty, and show how the infusory animalcules also are generated from beings of their own kind. ❋ Francis Bowen (1850)
I have always put it to myself -- What advantage can we see in an infusory animal, or an intestinal worm, or coral polypus, or earthworm being highly developed? ❋ Charles Darwin (1845)
We have already seen that this nucleated vesicle is itself a type of mature and independent being in the infusory animalcules, as well as the starting point of the foetal progress of every higher individual in creation, both animal and vegetable. ❋ Robert Chambers (1836)
Further, it has been recently discovered by means of the microscope, that there is, as far as can be judged, a perfect resemblance between the ovum of the mammal tribes, during that early stage when it is passing through the oviduct, and the young of the infusory animalcules. ❋ Robert Chambers (1836)
It has been computed that one-sixth part of the solid matter let fall by great rivers at their outlets consists of still recognizable infusory shells and shields, and, as the friction of rolling water must reduce many of these fragile structures to a state of comminution which even the microscope cannot resolve into distinct particles and identify as relics of animal or of vegetable life, we must conclude that a considerably larger proportion of river deposits is really the product of animalcules [109]. ❋ Unknown (1874)
It has been computed that one-sixth part of the solid matter let fall by great rivers at their outlets consists of still recognizable infusory shells and shields, and, as the friction of rolling water must reduce many of these fragile structures to a state of comminution which even the microscope cannot resolve into distinct particles and identify as relics of animal or of vegetable life, we must conclude that a considerably larger proportion of river deposits is really the product of animalcules. ❋ George P. Marsh (1841)
