Absorption of X-Rays. 

 Table VI. 



483 



Atomic 

 number. 



11 



12 ... 



13 ... 



14 ... 



15 

 16 



17 

 19 

 20 

 24 

 25 

 26 

 27 

 28 

 29 

 30 



33 



35 



38 

 42 

 47 

 48 

 50 

 52 

 56 

 58 

 74 

 78 

 80 

 82 

 83 

 92 



Elements. 



O 



Al 

 Si 



P 



S 



CI 



K 



Ca 



Cr 



Mn 



Fe 



Co 



m 



Cu 

 Zn 



As 

 Br 

 Sr 

 Mo 



H 



Cd 



Sn 



I 



Ba 



Ce 



W 



Pt 



Hg 



Pb 



Bi 



U 



X.a.k. 



005 

 0-46 



0-63 



0-9 

 1-9 



3-5 

 34 

 41 



5-68 

 7-78 

 9-5 

 111 

 14-4 

 241 

 414 

 45-5 

 53-9 

 59-4 

 65-1 

 75-4 



128 

 154 

 173 

 244 

 300 

 301 

 311 

 315 

 334 

 327 

 308 

 529 

 547 

 569 

 677 

 1123 



Substances examined. 



Methyl Alcohol... 0*46 



Buthyl alcohol ... 0'48 



Propyl alcohol ... - 46 



Acetone 0*46 



Ethyl ether 0-48 



Benzene 0'45 



Aniline 0'44 



Pyridine 0"45 



Nitro-benzene ... 0*45 



HN0 3 0-61 



NH 4 N0 3 0-64 



NaOH 1-8 



NaCl 2-0 



(C 2 H 5 ) 4 Si 



3-9 



(C 6 H 5 )Si(CH 3 ) 3 ... 4-2 



ZnCl 2 . 

 ZnS0 4 



(Metal.) 



77-3 



73-4 



