The Technic Civilization Saga, Volumes I-III

These three volumes collect twenty four works. Of these, at least sixteen are set during the lifetime of Nicholas van Rijn. Can he still be alive at the time of "Wingless" when his great-great-grandson, Nat Falkayn, is twelve years old Terrestrial, seventeen Avalonian, on the colony planet of Avalon?

Thus, Volumes I-III constitute a future history series, as against just a futuristic series, by virtue of including the first three installments in Vol I and either four or five of the six installments in Vol III. The pre- and post-van Rijn installments are indeed set centuries apart. "Wingless" is a good transitional narrative.

Van Rijn and David Falkayn are introduced in Vol I;
van Rijn's granddaughter, Coya, is introduced in the last installment of Vol II;
Falkayn's and Coya's son, Nicholas, is born near the end of the first installment in Vol III;
Nicholas Falkayn speaks to his twelve year old son, Nat, in "Wingless," which is the second installment of Vol III;
after "Wingless," we are embarked on the future history of Avalon, then of Earth and other planets, and we meet one more Falkayn, many generations later, in the last installment of Vol III.