C ^70 ) 
I. Part of a letter from Mr. Leuvenhook, Date J Dc\k 
x^d. 01 June; 1699. Co^cermfighi^ Anlwcrs to Ob- 
jcdiions made to his Opintom concerning the Animalcula 
femuie Mafculine. 
IHavs feen in the PhilofophieAlTranfetihn, Numb. 247/0/. J37. The OS- 
jc^lotis, propoicd by " ay of QueftioDs, which the very learned Dr. 
/martin Lifler imkcth, againft many pofiiiom, conceriro the Procrcauon of 
an Aaimal out of the Mafculioe Seed. 
Concerning this, r muft tell you, that tbcfc Objcdlcns do not at all 
alter my O piniciD. 
We fee zimoi} always, that provident Nauire, doth, concerning the 
cncreafm^T! or Procreatioa, be it in AniiT.^Is, yilh,or other things, ainioftgoc- 
rcry where the fame xway to Work. For we have as little R.afon as we have 
to ask,- how out of the Seed of a Tree, let us take aa A -^r/lc-tivre, which 
Seed we know to be a KerDel,of an Apple, ca.i not only com': to ^row a 
whole Tree, but alfo in a few Years time, can be Muldpiycd into a thoufaod 
Trees. Ail the Trees, that we find on the Giobc of the Earth, Origiually 
sre come, and do proceed, from Seed of tlic Trees, that were at lirfl 
Created oa our Globe. 
Now we come to fee, in the Seed of an Apple , the Leaves af- 
though they arc very much lefs, then the Leaves of ether Seeds of Trecs» 
but according to the fmalnefs of the Leaves proper tionably , fccms 
to m in the Pith of a^ced of a» Apple-tree, much bigger that parr, thac 
iiall make the ftem of the Tree, and in this we fee thcPich of the Tree, 
a greatmflny Veffcis, part whereof d;d carry up the Juices and the Bark 5 
but, 1 believe, that we fhall never penetrate into thcfe Miseries, that in the 
Plant of tlic Seed of an Apple which we endeavour to Anatomize, we fhouJd 
be able to difcover, the Tree with its boujdhs much Icfs the BlolToms and 
Apples ; and although fuch an invefligation, (hall remain hid fromoor EycSj 
yet notwithftanding dayly Experience ciorh tejch oi, that out of a 
Seed of an Apple, is produc'd a young Plant j which Plant in procefs of 
time, after the expiration of fome years, is not only grow n up into a Tree, 
but it alfo doth Bear Apples 5 Now c^:rtainly the whole Tree and Fruit was 
locked up in one Seed of an Apple, for if it had nox been locked up in the 
Sec d, how could (according to nay fuppofiticn) poffibly the Tree and Fruit 
Sprouf out of it. 
Mufl not we ftand amazed, when weconfiffer, theencrcafing ami procre- 
ation, of fo many forts of Fifh that have Rows and whofc Mafculinc Se ed is 
the Soft Row, vi\. that out of one Soft Row, to Wit the Cods, pr ocecd fo 
many Millions of fmall Animals every >car, -nd that at that time v hen the 
Cod has (hm his Soft Row, he lobs thereof fh. t k up, or the twiflcs|) parts of 
jhefe Soft Rows ftjiink up fo clofe together, that they onl) feeoi toj be Skins 
Membranes 9 and we fee that fome Weeks after, the Sofc-roW 
doth en- 
crcafc 
