After this he fayes, the thing feemed out of difpute, 
when out came a book called Me l{ecreation oft he Eye and 
?7iindin obfervations upomSnaiU, by Father Thilippo Bonani 
ajefuite-y it being a pretty large Volume containing the 
natural hiitory of all the Snail kind, where he not only 
doubts of their produdion by Eggs, but alio endeavours 
to overthrow moft .of Signor ^edis, experiments that 
tended to eftablifli the Principle of an univocous genera- 
tion to which he prefers the old principle of corruption 
for the Infedls. 
While he was reading this Book, he fayes it was his for- 
tune in taking up fome Flowers to obferve by a border, 
a clufter of little Fggs which had nothing in them but the 
white like the white of an Egg, but upon a more dili- 
gent fearcli he found another clufter as bigg as would 
fill the palmeof his handout of which came young Snails 
fome having but juft broke the (hell, others being half 
out, and others quite out with the tefta of the Egg fa- 
ftened to the tayle of the Animah He fayes the Fggs 
were no bigger then Pepper cornes, and thofe moft 
white, but thofe which were ready to break, tending to- 
wards yellow ; they were faftened in a lump by aiiind of 
glut inious- water, and this was about the loth of July^ he 
illuftrates the thing by a very good cut. 
This difcovery being very plain and remarkable, he 
called in to fee it many Learned perfons, and fome 
of good quality, whome he names that the truth of his 
afleverationmay bebut of difpute» 
This done, he examines the 5^^y^/^^j" reafon againft this 
univocous generation which are in all foure. 
I. ^r^'/^oi^/^j- authority.. 2. A principle of his, that te- 
ftaceous Animals have not the difference of Sexes. 3 A 
maxime of the fame Philofopher that no Exanguous xAni- 
mal is oviparous. 4. A colledlion of fome obfervations 
to confirm Arijiotles reafbns. The three firft are anfwer- 
ed by experiments which confute hinij and obferves 
that Arijiotle himfelf who had more carefully obferved 
