Hi MADMAN,
from the look of these two, I would hazard a guess and say that they are amber poisons. Australian ones like this, with the seam NOT going all the way to the lip, would date from circa 1895 - 1905.
Hey Mike, we dig a ton of those same bottles too. I was guessing some kind of chemical (or Poison) too. They make great window glass I'd love to see one with a label too see what they were.. Good luck Diggin!
BOB