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POPULAR SCIENCE MONTHLY 



Fig. 6. Looking North in General Penitentiary Brick-yard. Upper third of brick 

 chimney, upper part of smokestack (to guys), and upper ring of lime-kiln ; together with large 

 part of the brick wall thrown to the east. Fissures made in ground in lower part of view. 



countries, hearing the sound from the preliminary tremors, rushed out- 

 of-doors into the street only to be thrown down toward the west by the 

 violent shaking. He dragged an injured companion a hundred feet or 

 so during the slight lessening of the violent shock, and then felt the 

 second climax of a slow undulating character pass underneath. This 

 experience is like the phenomena of double earthquake shocks which 

 have come to Jamaica in past years, and also has characterized many 

 of the sequent shocks. Another man repeated his actions and found 

 that he could jump through the fallen wall of the house and then over 



r Fig. 7. Looking North to Landing Place at General Penitentiary. Massive walls 

 cracked ; ;a section of the eastern wall was demolished. Upper part of chimney overthrown 

 to east. 



