Anima Astrologiae or A Guide for Astrologers by William Lilly 1676

The 30th Consideration is, To observe when a planet that is Significator, or the Moon, shall have past the 29th degree of the Sign wherein it is, and touches the 30th , and especially if it have passed one minute of that degree; for then it shall have no strength in that Sign, but in the next; so that if in the first it signified any evil, it shall hurt the person or thing threatened no more than the fall of a house shall one that is just got out of it; or being with one foot upon the threashold, has one behind him that throws him out; and then the building falls. And if it signifies any good, it shall profit no more than he that hath spread a nest for birds, and just touches the feathers of their tails, but never catches their bodies; and therefore ‘Zael’ says, “If a planet or the Moon be in the 29th degree of any Sign, its virtue is yet in that Sign wherein he is; because he has not yet wholly past the 30th degree.” &c.

31.When one Planet applies to the conjunction of another