Aet. _Plac._ v. 7; 419. Empedokles: Male or female are born according to warmth and coldness; whence he records that the first males were born to the east and south from the earth, and the females to the north. v. 8; 420. Empedokles: Monstrosities are due to too much or too little seed (_semen_), or to disturbance of motion, or to division into several parts, or to a bending aside. v. 10; 421. Empedokles: Twins and triplets are due to excess of seed and division of it. v. 11; 422. Empedokles: Likenesses (of children to parents) are due to power of the fruitful seed, and differences occur when the warmth in the seed is dissipated.[85] v. 12; 423. Empedokles: Offspring are formed according to the fancy of the woman at the time of conception; for oftentimes women fall in love with images and statues, and bring forth offspring like these. v. 14; 425. Empedokles: (Mules are not fertile) because the womb is small and low and narrow, and attached to the belly in a reverse manner, so that the seed does not go into it straight, nor would it receive the seed even if it should reach it. v. 15; 425. Empedokles: The embryo is [not] alive, but exists without breathing in the belly; and the first breath of the animal takes place at birth, when the moisture in infants gives way, and when the airy matter from without comes to the void, to enter into the openings of the lungs. v. 19; 430. Empedokles: The first generations of animals and plants were never complete, but were yoked with incongruous parts; and the second were forms of parts that belong together; and the third, of parts grown into one whole; and the fourth were no longer from like parts, as for instance from earth and water, but from elements already permeating each other; for some the food being condensed, for others the fairness of the females causing an excitement of the motion of the seed. And the classes of all the animals were separated on account of such mixings; those more adapted to the water rushed into this, others sailed up into the air as many as had the more of fiery matter, and the heavier remained on the earth, and equal portions in the mixture spoke in the breasts of all. v. 22; 434. Empedokles: Flesh is the product of equal parts of the four elements mixed together, and sinews of double portions of fire and earth mixed together, and the claws of animals are the product of sinews chilled by contact with the air, and bones of two equal parts of water and of earth and four parts of fire mingled together. And sweat and tears come from blood as it wastes away, and flows out because it has become rarefied. v. 24; 435. Empedokles: Sleep is a moderate cooling of the warmth in the blood, death a complete cooling. v. 25; 437. Empedokles: Death is a separation of the fiery matter out of the mixture of which the man is composed; so that from this standpoint death of the body and of the soul happens together; and sleep is a separating of the fiery matter. v. 26; 438.