The meaning of "Mergus Square Nolomar" is read as the <curent position of the planet 1> <the aspect/angle to the other> <the recorded position of the 2nd planet at the time of the individual's birth> basically means Mergus is +/-90 deg around the circle from the position the sun was in at the time of the individual's birth. According to McDonnald's Astrology article Harnic astrologers use the first 6 quotents of 360 degrees: 0 conjunct, (360/2=)180 opposite, (360/3=)120 trine/TRIGON, (360/4=)90 square/QUADRAT/quartile, (360/5=)72 QUINTIL, etc. while seems pretty close to the data available in the file. (There is no quintile data in the file AFAIK.)
