This paper uses data compiled from faculty files at a private, doctoral-granting research university to investigate whether or not there are gender-related differences in salary offers at the time of initial appointment. The investigation uses single- and multiple-equation regression models that control for gender, date of hire, experience and degree attained, rank, characteristics of the position being filled, inflation, and academic department. The study finds an unexplained and statistically significant differential in salary-at-hire between men and women of from 2.9% to 8.4%, and it finds that the unexplained male-female differential in salary-at-hire has increased since 1990.