A word as to the formation of caves, grottoes, caverns, and rock shelters.
But the man was staring beyond the little column of rock shelters.
The rock shelters are shallow, or with a thin covering of earth on the floor, or subject to overflow.
The cave and rock shelters of Bruniquel (Tarn-et-Garonne) have been carefully examined by competent explorers.
Many of the text illustrations of this volume are reproductions of originals found in the caves and rock shelters of France.K.
The only remains of primitive man known are those found in caves and rock shelters.
Protection from the cold was also sought in caverns and rock shelters, and for a very long period man remained a cave-dweller.
Places like these and those of rock shelters in other lands have given fruitful results and might they not in these islands?