VANADIUM. 273 



atomic weight determinations with Schutzenberger and 

 Friedel, as he was want to do when considering my work. 



To adopt the weight of nitrogen per unit of measure 

 from Lord Rayleigh, and then use the false Stas value for 

 the atomic weight of nitrogen, disproved by the same Lord 

 Rayleigh, is almost too grotesque even for his present 

 associate Moissan. 



Making a blunder of 0.7 at the start does not augur well 

 for the outcome. Since all essential data of experiment are 

 withheld, we cannot tell how many other faux pas are thus 

 fortunately hidden from our view. 



When Moissan slavishly adopts the false atomic weights 

 of the German Chemical Society we need expect no results 

 worth consideration from French Chemists. See p. 34. 



Va = 51. VANADIUM. ROSCOE. 1868. 



O2 : Vaz 05=32 : 182^=0.17 582. Chg. 19 low. 

 Roscoe, 1868, 5 Det., 533 589544. Mean 73 low. 



This corresponds to 0.38 high or 51.38. The experi- 

 mental results are evidently low, for some reason. 



The volumetric work given below, need not be considered. 

 What is wanted, is a thorough revision of the dry way work. 



Va O CIV : 3 Ag= 173.5 ' 324 = 0.53 545- 

 Roscoe, 1868, A : 6 Det., 533 425; 108. Mean 35 low. 



B : 3 Det., 980 479; 501. " 41 high. 

 Va O Cla : 3 Ag Cl = 173.5 43- 5 =0.40 302. 

 Roscoe, 1868, A : 6 Det., 537 174; 362. Mean 158 high. 

 B : 2 Det., 391 333 ; 58. " 60 high. 



Wo = Tu = 184. WOLFRAM. SCHNEIDER, 1850. 



Wo : Wo Oa = 184 : 232 =0.79 310. Chg. 9 high. 

 Schneider, 1850, Reduct, 5 Det., 350 254; 96. Mean 6 high. 



Oxidat, 3Det., 3 29 324; 5. 17 high. 

 Marchand, 1851, Reduct, 2 Det., 307 302; 5. " 5 low. 



Oxidat, 2 Det., 352 321; 31. " 26 high. 



