being generally denoted by their initial letters, "Δ" and "Τ" respectively. Many chapters having their origin in preexisting organizations have perpetuated the memory of this fact in a chapter name embodying that of the original society.
INSIGNIA
The distinctive badges of the fraternities are of three kinds. First, a shield or plate of gold, displaying upon in the fraternity name, together with symbols of general or peculiar significance. This is worn as a pin, or as a watch key pendant from the watch chain. Secondly, a monogram of letters composing the name; these are the handsomest of all badges, and are usually jeweled. Thirdly, some symbol representing the name of the society or some of its degrees, as a skull, a harp, a key.
During the past few years there has been a marked improvement in badges of all kinds. They have become smaller in size, plainer in ornamentation and less expensive than formerly and many of the fraternities have adopted badges of standard size and style from which no departure is permitted. The majority of the fraternities use pledge buttons which they give to persons pledged to join but who are not yet admitted to membership. These buttons usually suggest the fraternity insignia.
In addition to the badges, most of the fraternities have chosen distinctive colors, flowers, flags, coats of arms, and other symbolic insignia and three or four have developed a complete system of heraldic devices for their chapters.
