Os.--245 (in a bar); less 60 = 185
Ir. 247 less 60 = 187
Pt. 249 less 60 = 189
But strange to say also
Ruthenium (bar) 132 less 60--72
Rhodium 134 less 60--74
Palladium 136 less 60--76
But 72, 74, 76, are Iron, Cobalt and Nickel.
So there does probably exist a new group with bars (183), 185, 187, 189, with atomic weights.
X=bar 185; atoms 2590, wt. 143.3
Y= 187, 2618, wt. 145.4
Z= 189, 2646, wt. 147.0.
They come probably among the rare earths. Probably also Neodymium and Praseodymium are two of them, for their weights are 143.6, 140.5.