Experts say that China's slowing population growth is due to rising living costs in major cities and the fact that urban couples value their independence over having children.
The MacAndrews, who were childless and in easy circumstances, arranged to undertake the care of the children, and Mrs. Strickland had only herself to provide for.
Now a museum, Charleston is hosting a season of outdoor events; it asked Holly Dawson, an in-house researcher, to shape the letters into a collage of the couple's life together.
Aldous Huxley, the novelist grandson of T. H. Huxley, who lived with the Haldanes for a time, parodied him, a touch mercilessly, as the scientist Edward Tantamount in the novel Point Counter Point.