MEASURING GEOLOGIC TIME— LANE 



241 



NVfJ3<JVS*d. 



NVINVOOHU 



DUIV 



NVIUAIC 



3IAVS 



NV13N3UA4 



NVINAMlH-flrtS 



WVI»3 

 NVINN30SV 



O 



J2 CO 



31508—38- 



-17 



