216 LEEUWENHOEK AND HIS ‘‘ LITTLE ANIMALS ’”’ 
Society in London, neither in England’ nor in France 
could they accept of my discoveries: nor do they even yet 
in Germany, as I’m informed. 
This remarkable document ends at this point with a couple 
of extracts from Leeuwenhoek’s letters of 23 March 1677 (to 
Oldenburg) and 5 October 1677 (to Lord Brouncker), which 
were sent to the Elector Palatine “to give him greater 
satisfaction concerning the vast numbers of little animalcules 
that are found in water”: but as these letters have already 
been given fully on earlier pages,’ it is unnecessary to repeat 
them here. 
With these observations we come to the end of Leeuwen- 
hoek’s researches on the free-living Protozoa and Bacteria, in 
so far as they were made in the XVII Century. Later he 
made many notable additional observations, but these will be 
chronicled in a later chapter: and we must now retrace our 
steps in order to record his equally wonderful discoveries 
concerning the parasitic Protista. 
* This can hardly be regarded as a fair description of the reception 
accorded to L.’s earliest observations by the Fellows of the Royal Society. 
* Vide pp. 168 and 173 supra. The second letter was originally addressed 
to Oldenburg, but redirected to Brouncker when L. heard of his death. 
