Which preposition to use with borings

of Occurrences 9%

For hours on end he lay flat on his back, staring at the dim illuminations of the windows and listening to the faint out-of-door noises or the sharper borings of insects in the logs of the structure.

for Occurrences 1%

" The boring for water in 1830 was extended, on the Fort Shelby plateau, 260 feet.

in Occurrences 1%

Passing over the confirmation which he draws from the "known rate of the deposit of Nile mud of about three inches a century," which would give a mild antiquity of twenty-six thousand years to pottery fished up from borings in the mud, since he admits that "borings are not very conclusive," we may notice how he deals with evidence from Chaldea on much the same principles.

than Occurrences 1%

But when he gets back to the town to enjoy it for a while he swiftly finds it much more boring than the country.

to Occurrences 1%

" "It has always seemed boring to me," she said.

Which preposition to use with  borings