812 



Mr. H. Carter on the Radioactive 

 Table II. 



Test 5. — Oxykydrogen blowpipe : exposed test followed 



by blank. 



Electroscope exposed. 



Electroscope shielded. 



Time 





Temperature 



Time 





Temperature 



(minutes). 





(0° 0.). 



(minutes). 





(0° C). 







18 8 



13-4 







18-9 



131 



10 



18-6 



13-35 



10 



18-15 



132 



20 



18-05 



1315 



20 



17-9 



1355 



SO 



17 65 



1315 



30 



17-85 



13-55 



40 



17-05 



13-2 



40 



175 



13-25 



50 



169 



13-35 



52 



17-05 



13-15 



60 



16-45 



13-3 



64 



16-4 



13-4 



70 



16-05 



131 



70 



16 2 



13-55 



75 



15-9 



131 



Mean 13-25 



75 



16-1 



Mean 13'35 



Test 6. — Oxykydrogen blowpipe : blank test followed 



by exposed. 



Electroscope shielded. 



Electroscope exposed. 







19-5 



1615 







19-4 



16-2 



10 



18-95 



16--2 



10 



18-95 



15-95 



20 



18-55 



161 



20 



18-25 



15-9 



32 



181 



16-0 



30 



17-9 



15-95 



40 



179 



15-95 



41 



17-25 



15-95 



50 



17-25 



15-95 



50 



170 



16-05 



60 



170 



160 



60 



1665 



161 



70 



16-6 



1605 



70 



16-25 



161 



80 



16-1 



1615 



80 



1595 



— 



90 



1595 



16-15 

 Mean 16*05 



90 



15-55 



162 

 Mean 16-05 



Test 7. — Oxj^acetylene blowpipe : exposed test followed 



by blank. 



Electroscope exposed. 



Electi-oscope shielded. 







19-05 



14-8 







20-2 



14-7 



11 



19 5 



14-55 



10 



19-9 



14-8 



20 



19-1 



14-55 



26 



198 



15-3 



SO 



18-9 



14-6 



35 



19-45 



14-7 



40 



18-6 



14-85 



42 



19-05 



14-8 



50 



18-25 



148 



50 



18-9 



15-25 



60 



18-05 



1.4-8 



72 



18-65 



14-45 



70 



17-9 



14-7 

 Mean 14-65 







Mean 14-S5 



