Sigma Pi manual,

Includes bibliographies.

Nu Sigma Nu bulletin.

Description based on 1932/33.

Sigma signs.

Description based on: 1983-1984.

Officers, members, charter, constitution, general index and geographical index of the Phi Alpha Sigma medical fraternity.

Includes index.

Ein Beitrag zur Mannigfaltigkeitslehre. Mannigfaltigkeiten deren Linienelemente auf die Form ds = f([square root symbol][Sigma]x²k̳)[square root symbol][Sigma]dx²k̳ gebracht werden können.

In formula in title, k̳ is subscript directly beneath superscript 2.

The dangers of the scholar. An address delivered before the Gamma sigma society of Dartmouth college, July 24, 1844.

Published at the request of the society.

Sigma Xi quarterly.

Mode of access: Internet.