The particles of which it is built up are usually too small to be distinguished without the aid of a lens, but when put under a sufficient Magnifying power, they exhibit evident marks of attrition.
"Geology"
James Geikie
In the Magnifying light they seemed many times their normal size.
"My Attainment of the Pole"
Frederick A. Cook
The line eaten in by "process" when examined under a very strong Magnifying glass proves to be a slightly jagged one.
"George Du Maurier, the Satirist of the Victorians"
T. Martin Wood