Property in Morocco is daily increasing considerably in value, and the particularly rapid urban development and agricultural changes have altered the scale of values which could hitherto serve as a basis for estimating-areas in connection with the cost of topographical surveys.

Rapid industrial development has become an all pervasive feature of Africa’s e economic and social development strategy. Agricultural development ceased to be an engine of growth, which it was in the fifties when it contributed 63 per cent (directly and indirectly) to the gross domestic product increment. This contribution has declined to JL8 per cent in the past decade (figure derived for 1960-67), and although this figure may be considered as unduly low-' it shows clearly that Africa's economic structure has been fundamentally altered.