PALLADIUM. 263 



Schroetter corresponds to 31.027; V. d. P. to 30.975; the 

 mean is 31.001. 

 0.05 741. P2 Agio: 



V. d. Plaats, 1885, 737 726; 13. Mean 9 low. 

 -77 3 2 7 A g 3 : A g 3 O4 P: 



V. d. Plaats, 1885, 326300; 26. " 14 low. 

 0.42438. PCl3:3Ag: 



Dumas, 1860, 469 444; 25. (C 17 high. 



Pb -207. LEAD. BERZELIUS. 1810. 



This is the first atomic weight established with care and 

 precision, by the father of chemical symbols, chemical lan- 

 guage and atomic weights. 



See this book, Part II, Chapter II, pp. 74-91. 



Pd= 106.5? PALLADIUM. 



Pd : Pd CU Kaz = 106.5 : 326.5=0.32 619. Chg. 20 high. 

 Berzelius, 1828, 2 Det., Mean 70 high. 



Joly and Leidie, 1893, 3 Det. : 



Rejected by authors, used by Clarke. 

 " " " 1893, 4 Det., Mean 164 low. 



" " " 1893, 2 Det, 138 low. 



Pd : Pd (N Ha, Cl) 2=106.5 : 211.5=0.50 355. Chg. 24 high. 

 Reiser, 1889, Ser. I n Det., 383 344; 39. Mean 5 high. 

 II 8 Det., 382-343; 39. 4 high. 

 Bailey and Lamb, 1892, 10 Det., 218 088; 130. " 184 low. 

 Keller and Smith, 1892, 9 Det., 519 502; 17. " 153 high. 

 Ser. I 4 Det., 422 350; 72. " 30 high. 

 II 6 Det., 388 360; 28. " 19 high. 

 u III 4 Det., 430401 ; 29. " 59 high. 

 Keiser and Breed, 1894: 



Ser. I 5 Det., 356 339; 17. " 4 low. 

 " II 4 Det., 360-345; 15. " i6high. 

 W. L. Hardin, 1900, uses Diphenyl-Pd-diammon, Cl and 

 Br, also Am Br-Palladate. Claims Pd=K>7. Fresen. 

 Ztschr., Bd. 39, p. 541 ; 1900. 



The result points to 106.5, which we might adopt if 



