Met with insuperable obstacles and many disappointments.
This task was destined to prove one of almost insuperable difficulty.
The only insuperable barrier to a barragania was the previous marriage with the blessing, the full religious marriage, of the woman to another man.
The critical examination of the nature and growth of this compilation has removed much that had formerly caused insuperable difficulties and had quite unnecessarily been made an integral or a relevant part of practical religion.
But these seemed very great difficulties, and I have almost thought them insuperable, when I further considered, that every irregularity in a reflecting superficies makes the rays stray 5 or 6 times more out of their due course, than the like irregularities in a refracting one; so that a much greater curiosity would be here requisite, than in figuring glasses for Refraction.