( 427 ) 
forward to the and was there nouriflied ‘the 
ufual v/ay, W2s. by the Placenta^ which was doubtlefs 
fixed in the Tubcy and the Pedunculus being kept whole, 
will eafily extend from thence to the Fcetus^ where it 
lay. 
Had this Sheep been nicely difleded by a skilful Hand* 
1 verily believe we ftiould have found my Opinion true 
in fad. Riolan Jun. Anthropog. Nov. lib. 2. c. 54. was 
the firft that publickly obferved thefe ftrange Concepti- 
ons^ and he tells us they have the Coats, Secundine, 
of fuch as are ingendred within the Womb. 
And confidering the late Anatomical Difcoveries, and 
new Hypothefis of the genital Parts in Women, and their 
ufes in Generation, made by Theod. Kirkringius^ dc 
Graaf, and others^ it Teems more than probable, that 
fuch Conceptions as we are fpeaking of, happen when in 
Coition one of the Eggs defcends into the Tube^ and 
being unable topafs into the thorough the lower 
Orifice (which is fometimes, and in aged People always, 
contraded 5J and being however impregnated by the Au- 
ra Semirtalis, or Antmalada, wherewith 'the Tefticles 
and fcminal Pans of Tome Males do (o prodigioufly and 
incredibly abound^ it there grows ’till too big to be con- 
tained, and then breaks forth into the Belly : Though 
fometimes, as I (hall (hew by a memorable Inftance, they 
continue in the Tube it felf. There the Placenta fixes, 
and fucks Nourifhmenc as from the Fundus Z)terl ^ and 
if the Pedunculus holds together, conveys it to the Feefus, 
as it doth to thofe in the natural Place of Breeding. 
I have perhaps with too much freedom and too 
little exadnefs laid before you my Notions, and the 
>!- Afr. Leeiicnhoek the Milt of a Codfijh hxth more Anim:.i!ai- 
h, th(r,n there ere People 01 the Earth. Dr. Hook, Phil. CoIlevK'-A^i/. i. 
-S f f 2 
