Every now and then I could see a fresh white head, and a slightly melancholy expression of countenance, peering at me through the vapor.
— from A Journey to the Centre of the Earth by Jules Verne

Every now and then its course is interrupted by islands which intervene, and which only serve as so many incentives to add to the impetuosity of its torrent; and though at last it is hemmed in by mountains on either side, in no part is the tide more rapid and precipitate.
— from The Natural History of Pliny, Volume 1 (of 6) by the Elder Pliny

The general rule for all chases where the pursuer is decidedly superior, namely, that order must be observed only so far as to keep the leading ships within reasonable supporting distance of the slower ones, so that they may not be singly overpowered before the latter can come up, was by this time well understood in the English navy, and that is certainly the fitting time for a mélêe .
— from The Influence of Sea Power Upon History, 1660-1783 by A. T. (Alfred Thayer) Mahan

This article had become especially necessary, as the inferior chiefs, particularly those of the third class, had amalgamated themselves with the head of their clans, to whom they had become more accountable than to their prince.
— from Annals and Antiquities of Rajasthan, v. 1 of 3 or the Central and Western Rajput States of India by James Tod

Two years were consumed in ecclesiastical negotiations; and the important cause between the emperor and one of his subjects was solemnly debated, first in the synod of Arles, and afterwards in the great council of Milan, 123 which consisted of above three hundred bishops.
— from The History of the Decline and Fall of the Roman Empire Table of Contents with links in the HTML file to the two Project Gutenberg editions (12 volumes) by Edward Gibbon

Two years were consumed in ecclesiastical negotiations; and the important cause between the emperor and one of his subjects was solemnly debated, first in the synod of Arles, and afterwards in the great council of Milan, which consisted of above three hundred bishops.
— from The History of the Decline and Fall of the Roman Empire Table of Contents with links in the HTML file to the two Project Gutenberg editions (12 volumes) by Edward Gibbon

In the progress of this respectful address, after numerous but unsuccessful endeavours to grapple with this sort of unsoundness, suspicions have arisen that I have been pursuing a phantom;—at times I have fondly imagined it within my immediate grasp, but it has always evaded my seizure with unaccountable dexterity:—it even now appears that I could "clutch" it, as your Lordship distinctly asserts that, "lunacy properly understood is a very different thing from that sort of unsoundness which renders a man incapable of managing his affairs or his person."
— from A Letter to the Right Honorable the Lord Chancellor, on the Nature and Interpretation of Unsoundness of Mind, and Imbecility of Intellect by John Haslam

The mud which passes from the mills is collected into pools, where it subsides, and every now and then is cleared out, and thrown into a common heap.
— from Journal of Researches into the Natural History and Geology of the Countries Visited During the Voyage Round the World of H.M.S. Beagle Under the Command of Captain Fitz Roy, R.N. by Charles Darwin

The thing seems inexplicable, but it is a fact; the burning of ricks and farm-sheds every now and then, in certain localities, reaches the dimensions of a public disaster.
— from The Life of the Fields by Richard Jefferies

My immediate conclusion was that some woman had been killed or wounded, as every now and then I could see the mortar shells dropping on the hill opposite.
— from My Cave Life in Vicksburg, with Letters of Trial and Travel by Mary Ann Webster Loughborough

she every now and then imploringly cried to her maid, “how do you think it will be?
— from Checkmate by Joseph Sheridan Le Fanu

Every now and then I cannot help glancing to see if they are gone or going—I cannot resist removing my fingers to hear if the conversation has taken a cooler turn.
— from Phyllis by Duchess

every now and then in cultivated districts, without hearing a single human voice even in the earlier portion of the evening—nay, any sound whatever, save once or twice the fierce warning bark of a shepherd's dog, when I had inadvertently approached too near a sheepfold—the startling rush of some affrighted bird in the wood, flapping wildly up through the foliage—a distant village clock in some indefinite direction over the hill-top—or, finally, as on one occasion, a few remote shots, which I at first fancied might have been fired off by my friends to direct me homewards, but afterwards ascribed, more correctly, perhaps, to poachers in the woods.
— from Chambers's Edinburgh Journal, No. 441 Volume 17, New Series, June 12, 1852 by Various