If a two-inch lower margin has been halved and a one-inch upper margin left intact, if the upper margin is reduced, the book will become a pleasant "working copy" instead of an obviously mangled large one, and the collector must settle in his own conscience whether this be a sufficient justification for snipping off a centimetre of old paper.
"Fine Books"
Alfred W. Pollard
2. The intramuscular osmotic pressure may reach, or even exceed, 2.5 atmospheres, or 2.6 kilogrammes per square centimetre of surface.
"The Mechanism of Life"
Stéphane Leduc
The molecular conductivity of an electrolyte is the conductivity of a solution containing one gramme-molecule of the substance placed between two parallel conducting plates, one centimetre apart.
"The Mechanism of Life"
Stéphane Leduc