At first he feared it was a telephone until its uninterrupted sound told him otherwise.
The latter is the intensity due to the uninterrupted wave.
Nature and mind (which are the two sides, or polar directions, of the one absolute) are each viewed as an activity advancing by an uninterrupted succession of stages.
The mode of blowing is peculiar, and requires some practice; an uninterrupted blast is kept up by the muscular action of the cheeks, while the ordinary respiration goes on through the nostrils.
Uninterrupted water communication could readily be established from Tyumen to Yakutsk, Aldansk, and the goldmines of the Vitim.