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SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. 83 



definite Mousterian type. My own work on the shelter, undertaken at M. Breuil's 

 suggestion, occupied seven months, between November, 1925, and January, 1927, 

 and was carried out by means of a grant from the Percy Sladen Memorial Fund. 



The Devil's Tower cave is a narrow fissure running obliquely into the Rock 

 of Gibraltar at the eastern end of the North Front, 350 m. from Forbes' Quarry. 

 It has a maximum height of 12 m. and a maximum width of 1.20 m., and 4 m. 

 from the entrance it narrows to a mere crack. The rocky floor at the cave 

 mouth lies 9 m. above sea-level, and 5 m. above the average level. 



The work carried out consisted in emptying the cave down to the rock floor 

 and removing the talus or terrace deposits over an area extending from the 



UfftH IIHIT 



OK- 



lITtlODCm 



Fig. 17. — The Mousterian site at Gibraltar that gave the child's skull. (After 



Miss Garrod.) 

 I. Fine sand. 2. Calcareous tufa. 3. Fine sand. 4.- Brownish-grey travertine 

 or tufa.' 5. Fine sand. 6. Pink travertine. 7. Raised beach. W. " Wash " of sandy 

 rubble. A. Rocks blocking the fissure. B. Fallen rock. C. Rampart of rock in 

 front of raised beach. -| — |- Portions of human skull. 



rock wall which bounded them on the west to a line 4.50 m. to the east of the 

 cave mouth. Seven layers of deposit were revealed in this way, the succession 

 from above downwards being as follows : 



1. Fine sand, filling the fissure to the roof. 



2. Calcareous tufa, 1-4 m. 



3. Fine sand, 20 cm.-i m. 



4. Travertine, 10-80 cm. 



5. Fine sand, 40 cm.-1.40 m. 



6. Travertine, 50-75 cm. 



7. Raised beach, with its surface at 8.50-9 m. above sea-level. 



Layers 1-5 contained archaeological material, the industry from top to bottom 

 being Mousterian. 



