12.The logic was appealing, but unfortunately no one knew how much salt was in the sea or by how much it increased each year, which rendered the experiment impracticable.
13.She had intended to send on one of her Servants to inform the Baron of her delay; But the account which the young Men gave of the Forest rendered this plan impracticable.
14.However, these orders could never be put into effect insofar as the German advance stalled in the suburbs of the city in the early winter and then as they were gradually pushed backwards.
15.However, because the Babadook doesn't manifest physically, it can't be harmed physically- that's why it needs to haunt victims in order to eventually wear them down and commit the violence it can't commit itself.
16.But that same program barely did anything when it was tried in the U. S. — possibly because U. S. teachers had more demands on their time and weren't able to deliver the program as completely.
17.The only reason we are not addressing it with the urgency it deserves is that the best solutions, the most advanced solutions, the most progressive solutions, are, unfortunately, in parts of the world where solutions don't scale.