IS 1: 100 [1] IS 2: 1 [4] [5] [9] [12] IS 1: 104 [14] [17] [18] [19] [22] [23] IS 1: 100 Engels’ argument in [26] IS 2: 1 IS 1: 100 [27] IS 1: 100 2. 18. 19. 20. 21. 24. (New York 1927); E. Reed, Woman’ s Evolution (New York 1974). 25.