Hicks. 



Phil. Trans., A, vol. 220, Plate 2. 



Kr 



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86 



U 



/ 



S3 



e 



J.9W // 



It IS 



V 



XfFg 



73JZ 13 14 15 16 17 18 



7 



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7/7 



22 



xm 



5 6 7 S 9 WO /Sff-e 63 6f 65 60 147 ft8 149 ISO 1& ~ 15Z 



