I
1. THE HOUSE IS A TOOL AND A SOCIAL PRODUCT
The house is essentially a tool, an artificial protective device, without the aid of which the world-wide distribution of mankind and the diffusion of human culture that we see at present, would not have been possible. As an extra-corporeal tool, unlike the corporeal hereditary tools of animals, it can be modified to meet varying conditions and needs and adapted to a wide range of climates.