Now, they say that human conception comes about in the square on the left of the Sun at birth in the case of births in the tenth month (for when the Sun was there, the conception occurred), but in the case of births in the seventh month, in the diameter. And they say that of these very tenth-month births, those of the longest birth are brought to term after 288 days and 8 hours, those of the intermediate birth after 273 days and 8 hours, and those of the least birth after 258 days and 8 hours; while of the seventh-month births, those of the greatest birth are after 206 days and 8 hours, those of the least birth after 176 days and 8 hours, and those of the intermediate birth after 191 days and 8 hours.
現在，他們說，對於懷胎十月的出生者，人類的受孕發生於出生時太陽左側的四角位（因為當太陽位於該位置時，受孕即已發生）；但對於懷胎七月的出生者，則發生於對角位。而他們說，在這些懷胎十月的出生者中，最長胎期者於 288 天又 8 小時後足月分娩，中等胎期者於 273 天又 8 小時後，最短胎期者於 258 天又 8 小時後；而在懷胎七月的出生者中，最大胎期者於 206 天又 8 小時後分娩，最短胎期者於 176 天又 8 小時後，中等胎期者於 191 天又 8 小時後。
The ancient Egyptians around Petosiris are strong in their assertion that where the Moon chances to be at the birth, that [zoidion] will mark the hour for the conception; and where the Moon chances to be for the conception, this [zoidion] or the one diametrical to this will mark the hour at the birth.
圍繞著培托西里斯（Petosiris）的古埃及人們強烈主張：出生時月亮所處的星座（zoidion），將會標示出受孕時的時辰；而受孕時月亮所處的星座，則此星座或與其相對（對角）的星座將會標示出出生時的時辰。
有些人採取以下的方式，而這對我們來說似乎並不令人非常滿意。他們說，將出生時標示時辰的［星座/黃道宮］之先升度數（pre-ascending degrees），乘以時數（multitude of hours），並將所得出的度數從命宮（Horoskopos，上升點）開始以每［星座/黃道宮］三十［度］進行發射（project），而無論該數值落於何處，該［星座/黃道宮］即會標示出播種種子（受孕）的時辰。
Some take it in the following manner, which does not seem very satisfactory to us. Multiply, they say, the pre-ascending degrees of the zdidion marking the hour at birth by the multitude of hours and project the resultant degrees from the Horoskopos at thirty [per zdidion], and wherever the number should fall out, that [zdidion] will mark the hour of the sowing of the seed.