22. Daughter of half sister by father, and their descendants, how low soever.
23. Son of half brother by mother.
24. Daughter of half brother by mother and their descendants, how low soever.
25. Son of half sister by mother.
26. Daughter of half sister by mother, and their descendants, how low soever.
N.B.—Rules (α) and (β) applicable to class 1, apply also to class 3. Further (δ) when two claimants are equal in respect of proximity, one who claims through a residuary is preferred to one who cannot so claim.
Class 4.
Descendants of the two grandfathers and the two grandmothers.
27. Full paternal aunt and her descendants.*
28. Half paternal aunt and her descendants.*