Doctoral enrollment and graduation patterns at Canadian universities during the 1970s and projections for the 1980s are presented. Attention is directed to full-time and part-time doctoral enrollment by eight fields of study, and 26 disciplines are examined for the 10-year period of 1970-71 to 1979-80. Breakdowns by region and by selected universities and characteristics of doctoral students, such as legal status, citizenship, and sex, are indicated. Additionally, doctoral graduation patterns between 1970-71 and 1979 are examined by field of study and variations by sex are indicated. Doctoral enrollment is also examined in relation to the number of earned doctorates over the 10-year period, and projections by field are made for 1981 and 1985. It was found that full-time and part-time enrollment remained stable during the 1970s, in the neighborhood of 13,000. However, there was a substantial shift during the middle 1970s from the sciences (agriculture and biological sciences, engineering, health sciences, mathematics, and physical sciences) to the human sciences (education, fine and applied arts, humanities, and social sciences). In general, during the 1970s every third doctoral student in the human sciences was studying on a part-time basis, compared with one in six in the sciences. For all fields of study, doctoral degrees as a percentage of enrollment has remained relatively stable in the neighborhood of 13-14 percent. However, during the 10 year period 1970 to 1980, the percentage for male Ph.D. recipients was 14.8 percent, as compared with 8.4 percent for females. While the humanities and some social science disciplines may have a surplus of Ph.D.s, the sciences and some applied social sciences may experiences shortages in the supply of Ph.D.s. (SW)