162 Of the Animalcules 
gether, and feemed to have the Inclination 
of Sheep, to follow their Leader and move 
in Flocks. Mr. Leeuwenhoek fays, he 
lound fo much Pleafure in obferving this, 
that he called in fame Neighbours to fhare 
it with him. 
Their Form was that of Fig. VI. . 
A Buck being killed in Rutting-time, the 
* Vafa Deferentia were found turgid with a 
milky Fluid, a Drop whereof, when applied 
to the Micro [cope, appeared full of Animal¬ 
cules moving very brifkly. The greateft 
Difficulty was to lay them properly before 
the Microfcope: for when the Matter is too 
thick, nothing can be feen but a confufed 
Motion, and when fpread thin it dries away 
immediately ; but by diluting it with warm 
Water, juft enough to change its Colour, 
they were feen diifinbtly. 
The human Semen has likewife been view'- 
ed by the Microfcope , and found no lets 
the Ribs and Inteftines : though the whole Creature was no 
. larger than the eighth Part of a Pea.—After this, he opened 
the Uterus of another Ewe. but three Days from the Coitus ; 
and fearching the Liquor coming from it very diligently with 
a Magnifying Glafs, obferved a little Particle the Size of a 
Grain of Sand ; which examining with ah excellent Micro~ 
/cope, he with great Pleafure found to be an exceeding minute 
Lamb lying round in its Integuments, and could plainly dif- 
cern its Mouth and Eyes. yid. Arc. Nat. Tom. I. Par. If* 
pag. 165, and 773. 
* Vid. Pm. Tranf, Numb. 284. 
8 plentifully 
\ x 
1 
