. Transactions. Fig. 4.— w>v/iuj:..j rod, in. diam. X 152. Fig. 5.—S\vagi:u tuxgstkn rod, IN. diam. X 152. ZAY JEFFRIES 631 i \ ^- Fig. 6.—Drawn tungsten wire, IN. DIAM. X 169. ^. \ . V, \ -A ^ Fig. 7.—Drawn tantalum wire, IN. DIAM. X 125.

Size: 1480px × 1688px
Photo credit: © The Reading Room / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: ., bo, bookcentury1800, bookdecade1870, booksubjectmineralindustries