730 Transformation of Thorium and Actinium Emanation. 



OOO t- OS t» OS 00 



OS CO CO CO L^ CO 



-*i Tt< ih cb "* 4< 

 o >c coco 



o a 

 0-43 



999009^00^9000000 

 tp m T^ o ^ 6 <i) 6 q -* n o i ^ -^ g 



O O fl 00 00 O M 00 (M H W rH -f C H 00 



iO O CO -t Ci -t* CM kO CO iCi CO »C i& T 



^H ^ 



g3 



^1 





o 



+1 



oosH'Mooooaoooo-iHCioooo 



CO— (-tOCMCNN-O NHHr-cOKC 

 --I CMCM t-H 



COCOOS-f^OiCCOCOCOOOCOCOL^CO 

 WWOOaCOOONO^^WOO^-ftO 



C~t ON COCOHrHrH H 10 C C f 1 H 



$ 



o c- oo os 



rt O 



01 10 © TPN«n a ioh - 



OS OS O0 O OS OS OS CO OS OS OS OS 

 c'o CO CO CO CO CO CO CO CO CO CO CO 



os - r 

 O 5 



<M T* CS CO-* CO ^H O Ol OS r-< 



CSCSCO j OS00 I I 1 I coos 1 icsosooo 

 CO CO CO ' CO CO ' ' ' ' CO CO ' CO CO CO CO 



Correct 



time iu 



sees. 



OOOOOOOOOOOIOOOOONCOOO 



(Or,OC(OHHHt.^!OHH(CCCOH 



i^ibNOcboi'fiNooib^oo^HcSoN 



CM CO <M CO CM <M ON i-H CO ON <M CO <7i Ol CO C3 CO CO 



e3 



01 



rh<r^^cbcocbcb^o^t~t~coo^cbo.— 



^(NffqOQf OOONCOLOONOOOOC* 

 OOCq<NQiOr-liOiOQ-Or-il>(MfOM't 

 1— CO CM 



-3 j>» 



03 



000000000000000000 

 oocooococooq ooooooo (75 oo 



GOOOCOOOOOOOiOOSOOOOCOcMCOCOOOCOaOCM 

 t^i—Ot^^t^Tti — t*l>.CO'<*ilr--*l>.Tt»t r .o 



OOnOONNCOOOCQr- iOOOCOOCO 



i— It— 1 i— I i— 1 r- li— 1 ,— ( ,— i ,_, ,_ ,_| 



'O ,£, 



1* 



—i IM 05 ^iO«N 00 ©O H <M 



8 

 +i 



