v.17-21 1872-1986 Incompl; v.22-24 1987-1989; v.25-27 1990-1992; v.28-31 1993-1996; v.32-34 1997-1999; v.19-21:3 (1984-fall 1986); v.22-23:2 (1987-spring 1988); v.23:3-v.25 (summer 1988-1990, lacks 23:4, 24:4); v.23:4 (fall 1988); v.26-28:1 (1991-winter 1993); v.28:2-29:2 (spring 1993-summer 1994; lacks v.28:4); v.26nos.3-4 1991; v.27 1992; v.28 1993; v.29 1994; v.30 1995; v.31 1996; v.32 1997; v.33 1998; v.34no.1-2 1999; 25-27; v.34:no.2 (1999:Spring); v.33:no.2 (1998:Spring); v.33:no.1 (1998:Winter); v.32:no.4 (1997:Fall); v.30:no.3 (1995:Fall); v.29:no.1 (1994:Spring); v.26:no.4 (1991:Fall); v.26:no.1 (1991:Winter); v.25:no.3 (1990:Summer); v.24:no.2 (1989:Spring); v.23:no.3 (1988:Summer); v.23:no.1 1988:Winter; v.34:no.1 (1999:Winter); v.33:no.4 (1998:Fall); v.32:no.1 (1997:Winter); v.30:no.1 (1995:Winter); v.29:no.2 (1994:Summer); v.28:no.1 (1993:Winter); v.26:no.2 (1991:Spring); v.25:no.4 (1990:Fall); v.24:no.3 (1989:Summer); v.23:no.2 (1988:Spring); v.22:no.4 (1987:Fall); v.32:no.3 (1997:Summer); v.31:no.2 (1996:Fall); v.31:no.1 (1996:Winter); v.28:no.2 (1993:Spring); v.26:no.3 (1991:Summer); v.25:no.2 (1990:Spring); v.25:no.1 (1990:Winter); v.24:no.1 (1989:Winter); v.22:no.3 (1987:Summer); v.22:no.2 (1987:Spring); v.22:no.1 (1987:Winter); v.21:no.3 (1986:Fall); v.27:no.4 (1992:Fall); v.27:no.3 (1992:Summer); v.19:no.1 (1984:Winter); v.19:no.3 (1984:Summer); v.20:no.1 (1985:Winter); v.20:no.3 (1985:Summer); v.21:no.1 (1986:Spring); v.27:no.2 (1992:Spring); v.27:no.1 (1992:Winter); v.19:no.2 (1984:Spring); v.19:no.4 (1984:Fall); v.20:no.2 (1985:Spring); v.20:no.4 (1986:Winter); v.21:no.2 (1986:Summer); v.33:no.3 (1998:Summer)

v.29, no. 1-2, v.30, no. 1, 3, v.31, no. 1-2 (spring-summer 1994, winter, fall 1995, winter-fall 1996); v.32-33, no. 3, v.34, no. 1-2 (winter 1997-summer 1998, winter -spring 1999)