Entrance to the Pindal cave, north coast of Spain not far from Colombres. The people are stand- 
ing on the fallen roof of a long sea passage in the rock which when the entrance was choked permit- 
ted the cave behind it to silt up and become an art gallery of considerable note. Professor Henri 
Breuil is on the left and the second from him is his colleague, Professor Hugo Obermaier. 
The upper photograph shows the view seen from the entrance of the cave. Stratified limestone 
stands nearly on end and the waves have cut out long passages in the softer strata 
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