

278 



BACON. 





Slight activity. 



17. Black sand from hear Paracale, Ambos Camarines. 



Time, 

 (a. m. ) 



8.40 

 10.25 



Pronounced activity. 



The nonmagnetic portion of this same black sand. 





Volts 



Volts. 



per hour 



172.2) 





114.91 



33 



Time, 

 (a. m.) 



10.20 

 10.50 



Volts. 

 201.2 

 174.4 



Volts 

 per hour. 



53.6 



Very pronounced activity, and grains of monazite were found in this portion. 

 18. Black sand from Aroroy, Masbate. Carries a little gold, no platinum. 





Volts 



Volts. 



per hour. 



153.11 





146.9] 



10.2 



Time, 

 (a. m.) 



10.55 

 12.55 

 Slight activity. 



19. Black sand from Ragay Gulf, Tayabas Province, pueblo of Kilbay. 



Time, 

 (a. m.) 



11.10 



10.40 



Slight activity. 



20. Black sand from Rapu-rapu Island, Albay. 



Time, 

 (p. m.) 



1.00 

 2.00 



Very slight activity. 



21. Magnetic portion of black sand from San Mateo, Rizal Province. 



Volts. 



Volts 

 per hour. 



215.0) 

 209.91 



10.2 



Volts. 



Volts 

 per hour 



148.4) 

 142.51 



5.9 



Time. 



(p. m.) Volts. 



2.20 201.2 



3.00 197.4 



Very slight activity. 



Nonmagnetic portion of the same. 



Time. 



(p. m.) Volts. 



3.00 141.3 



4.00 133.6 



Slight activity. 



22. Sand from Gumaus River, Ambos Camarines. 



Volts 

 per hour. 



5.7 



Volts 

 per hour. 



Time, 

 (a. m.) 



9.10 

 9.40 



Volts. 

 182.9 

 180.0 



7.7 



Volts 

 per hour. 



5.8 



