There are really four dimensions, three which we call three planes of space and a fourth, time.
Meeting the Elois'
It came into my head, oddly enough, that my voice was too harsh and deep for them
The Elois' Home
As i did so i surveyed the hall at my leisure
The story starts off with The Time Traveler at his home in London trying to convince a group of men, including the narrator that time is the fourth dimension
Missing Time Machine
When The Time Traveler traveled to the year 802,701 he landed in a garden near a sphinx and met creatures that are 4 feet tall and wear purple tunics called the Elois
When I tell you that none made the slightest attempt to rescue the weakly crying little thing which was drowning before their eyes
The Elois led the Time Traveler to a huge building filled with a large crowd of little people. He noticed this once nice building to be badly broken and weather- worn and as they gathered all they ate were fruits.
When the Time Traveler was about to end his walk he looked for the building he had been in earlier and thw white sphinx in the garden caught his eye and he noticed his Time Machine was missing.
It took no very great mental effort to infer that my Time Machine was inside that pedestal
On the third day he went and watched the little people bathe in a shallow and he saw a little weakly drowning and no one trying to help her
The Time Traveler builds up the courage to go down to where the Morlocks or ape-like creatures hold his time machine. He finds out that matches work as a good defense towards the Morlocks though they still chase him out of their territory
Plainly, the second species of man was subterranean