What is this called?

It is called conduction.

What then is conduction of heat?

It is the passage of heat from one body to another which it touches, or from one particle of a body to another particle of the same body.

What bodies are good conductors of heat?

Such bodies as gold, platinum, copper, silver, iron, zinc, tin, and lead, in the order named, are the best conductors of heat.

What bodies are poor conductors of heat?

Such bodies as glass, wood, charcoal, wool, hair, and fur.

Fur is the poorest conductor of heat known.

Why does a piece of wood blazing at one end not feel hot at the other end?