Note 2 — I
Reading edition
This body of Canon type occupies about two-thirds [anc24] of an American square inch. A square inch of the Small-pica type, in which this text is composed, contains about 44 ems to the square inch; a square inch of Agate, or of small advertising type, contains 177 ems to the square inch. There are types so small that 447 ems can be put in a square inch.