He inserts in the primary circuit of the alternating FIG.
- Hydrothecae sessile, biserial, alternating or opposite on the stem.
The coast-line consists of a succession of great promontories alternating with deep inlets.
Hence, when the coil at one fixed station was in action it generated high frequency alternating currents, which were propagated across the air gap between the ordinary telegraph wires and the metallic surfaces attached to one secondary terminal of the induction coil, and conveyed along the ordinary telegraph wires between station and moving train.
31 have felsitic bands alternating with others which are purely glassy.