It's simply called a plot diagram :)
The narrator meets the Medical Man at the Linnaean Society in the city. The Medical Man thinks the Time Machine thing was a trick, but he can't figure out how the Time Traveller did it. The narrator goes back the following week for the Time Traveller's weekly dinner party.
it's wrong, and part of premature sexualising of young girls. There may be some good things that girls learn from this, but they learn a whole lot more bad stuff, like excessive vanity, a money hungry attitude, and the backstabbing and cattiness that often goes on among the mothers.