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ALL kinds of Animals, I humbly conceive, have Ovaries, and not only Birds and Fish and all sorts of Viviparous but Insects too, do propagate by Eggs, and all more perfect Animals, as Cows, Sheep, Goats, Hogs, Dogs, Foxes, Hares, Cunneys, &c. have Testicles, full of Glands and Vesicles turgid, with a kind of Albuminous Liquor, the Materia sub∣strata of several Foetus in various Animals.
The Eggs of different kinds of Animals, * 1.1 I mean the variety of Matter found in their Testicles, is near akin in similitude to the Albuminous Liquor of Eggs relating to Birds, by reason the different Liquors lodg∣ed in Vesicles of several Animals, do receive alike induration or Concre∣tion being held over the fire.
And it may be observed that Animals according to their different mag∣nitudes, have Testicles of divers dimensions; * 1.2 So that those of Hares and Cunneys do not much exceed the seeds of Rape; and Sheep, Hogs, Peas; and Cows the bigness of Cherries.
And it may be worthy our remark, * 1.3 that in these Animals besides greater Eggs, also lesser may be found, of which some are so small, that they can scarce be discerned, and other Eggs do very much increase in greatness by reason of age and Coition; in young Animals the Ovaries are very small, and acquire greater dimensions in more mature age, in which they are re∣ceptive of so great alteration, that they resemble large Globules, as being Vesicles replenished with Crystalline Liquor; these Eggs are so fruitful, that twenty or more may be discovered in one Testicle, which prove pregnant one after another by Coition.
Learned Steno hath observed the Testicles of a Beare to be composed of ma∣ny round white bodies resembling the Eggs of Fish. His words are these; * 1.4 Testiculi in ursa constant plurimis granulis albicantibus instar ovarii piscium, tu∣barum extrema expansa illos adeo undi{que} includunt, ut parvulum duntaxat fora∣men in Abdomen pateat, quo dilatato sponte elabuntur testiculi.
In a Castor may be discerned two Testicles (confining on the horns of the Uterus) which are integrated of many small Vesicles, * 1.5 resembling Eggs without shells.
Ingenious Steno making a curious inspection into Testicles of Animals, * 1.6 gi∣veth a very good account of variety of Eggs, upon the Dissection of divers Does. Quater in Damis (ait ille) in Testiculorum Ova inquisivi. Prima Ju∣nior erat, nec praegnans, ubi plurima Ova albicantia humore transparente plena erant. Secunda praegnans quidem erat, sed nullum foetus principium extabat, tumentibus duntaxat interioribus partibus Uteri: hujus alter Testiculus insignis magnitudinis Ovum continebat, pars testiculi substantia glandulosa constare vide∣batur. Tertia senior Foetum integrè formatum gestabat, licet Chorion Ʋtero non nisi quam levissime adhaereret. In Quarta nutrum{que} Uteri Cornu humorem Albugi∣neum continebat, qui coctus Albuminis instar induruit, quo modo Testiculorum Ova coctione indurescebant simul & Albicabant. Erant in iisdem Testiculis quae∣dam cavitates omni humore vacuae, aliae humore Cornu ad instar Diaphano repletae. Et hic substantia Alba Parenchymatodes conspicua erat.