128 SIMPLIFIED SCIENTIFIC ASTROLOGY
form the cusp of the Fourth House called the Nadir, which is opposite the Tenth.
These two points are invested by the same degrees of the Zodiac, at any given time regardless of whether the birthplace is near the pole or the equator, In the latter case, we may also imagine a line drawn at right angles across the Meridian, (as the line in the horoscope from the Midheaven to the Nadir is called),from East to West, and that would then form the cusps of the First and Seventh Houses. By dividing each of the four sections into three we would have twelve compartments of equal size, namely thirty degrees each,
But all birthplaces are not on the equator, and owing to the spherical shape of the earth and the inclination of the earth's axis, the sizes of the houses vary more and more as we approach the poles, so that some houses may have only twelve or fifteen degrees, while others have more than sixty. See page 49 for a more detailed analysis.
The reason for this division of the earth into houses may be comprehended when we consider that the Sun’s rays affect us differently in the morning, at noon and at night, also in summer and winter; and if we study the cause, we shall readily see that it is the angle at which the ray strikes us or the earth which produces the difference in effect. Similarly with the stellar rays, Astrologers have observed that
