A straight length of not less than 60 metres for the largest gauge and 40 metres for the smallest must be made between two curves having opposite directions.
In diameter, and the smallest 2 in., are wrapped in asbestos, felt and other non-conducting materials, and are placed in wooden tubes laid under ground like water and gas pipes.
Forrest; each state was a Realm under a Grand Dragon; several counties formed a Dominion under a Grand Titan; each county was a Province under a Grand Giant; the smallest division being a Den under a Grand Cyclops.
The huge glyptodon once inhabited this region, which now possesses the smallest armadillo known, the " quirquincho " or Dasypus minutus.
There are still many magneto exchanges in existence, but when new exchanges are erected only the very smallest are equipped for magneto working, that system having succumbed to the common battery one in the case of all equipments of moderate and large dimensions.