The square of a number is the product of that number, multiplied by itself. Thus, 4 is the square of 2, and 9 of 3. The first ten numbers are: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10; their squares are 1, 4, 9,16,25,36,49,64,81,100; and 3, 5, 7, 9,11,13,15,17, 19 are the differences between each square and that which precedes it; giving us the sacred numbers, 3, 5, 7, and 9. Of these numbers, the square of 3 and 4, added together, gives the square of 5; and those of 6 and 8, the square of 10; and if a right-angled triangle be formed, the base measuring 3 or 6 parts, and the perpendicular 4 or 8 parts, the hypothenuse will be 5 or 10 parts; and if a square is erected on each side, these squares being subdivided into squares each side of which is one part in length, there will be as many of these in the square erected on the hypothenuse as in the other two squares together. Now the Egyptians arranged their deities in _Triads_; the FATHER or the Spirit or Active Principle or _Generative Power_; the MOTHER, or Matter, or the Passive Principle, or the _Conceptive_ Power; and the SON, _Issue_ or _Product_, the Universe, proceeding from the two principles. These were OSIRIS, ISIS, and HORUS. In the same way, PLATO gives us _Thought_ the _Father_; Primitive _Matter_ the _Mother_; and _Kosmos_ the _World_, the _Son_, the Universe animated by a soul. Triads of the same kind are found in the Kabalah. PLUTARCH says, in his book _De Iside et Osiride_, "But the better and diviner nature consists of three,--that which exists within the Intellect only, and Matter, and that which proceeds from these, which the Greeks call Kosmos; of which three, Plato is wont to call the Intelligible, the 'Idea, Exemplar, and Father'; Matter, 'the Mother, the Nurse, and the place and receptacle of generation'; and the issue of these two, 'the Offspring and Genesis,'" the KOSMOS, "a word signifying equally _Beauty_ and _Order_, or the Universe itself." You will not fail to notice that Beauty is symbolized by the Junior Warden in the South. Plutarch continues to say that the Egyptians compared the universal nature to what they called the most beautiful and perfect triangle, as Plato does, in that nuptial diagram, as it is termed, which he has introduced into his Commonwealth. Then he adds that this triangle is right-angled, and its sides respectively as 3, 4, and 5; and he says, "We must suppose that the perpendicular is designed by them to represent the masculine nature, the base the feminine, and that the hypothenuse is to be looked upon as the offspring of both; and accordingly the first of them will aptly enough represent OSIRIS, or the prime cause; the second, ISIS, or the receptive capacity; the last, HORUS, or the common effect of the other two. For 3 is the first number which is composed of even and odd; and 4 is a square whose side is equal to the even number 2; but 5, being generated, as it were, out of the