Before the times of leeuwenhoek I should perhaps have been unable to see more than this, although, as a matter of fact, in those happy-go-lucky days my ancestors would doubtless have trounced me soundly for wasting my time on such useless and ungodly things as butterfly eggs.
"Edge of the Jungle"
William Beebe
They were destined, however, to receive a great impetus from the discoveries which emanated not long after from the father of microscopy, leeuwenhoek.
"Catholic Churchmen in Science"
James J. Walsh
They multiply with great rapidity, by giving off minute buds, which soon attain the size of their parent, and then either become detached or remain united, forming the compound globules of which leeuwenhoek speaks, though the constancy of their arrangement in sixes existed only in the worthy Dutchman's imagination.
"Critiques and Addresses"
Thomas Henry Huxley