Oh, my dear child, what opinions can poor I give on the almost insoluble problems you put before me?
"Lady-John-Russell"
MacCarthy, Desmond
Calomel is well known to be practically insoluble in pure water at the common temperature.
"The History of the Medical Department of Transylvania University"
Robert Peter
It is true that he adds "I am convinced that the objections have little weight, and the difficulties are not insoluble."
"The Old Riddle and the Newest Answer"
John Gerard