This does not so much constitute a table or formula, otherwise Mendel’s preferred media of representing abstract relationships, but a diagram. The following sentence makes clear that it is not so much supposed to represent the combinatorial product but the actual process of fertilisation. In this respect it is notable that the arrows point from (male) pollen cells to (female) germ cells, hence retaining a notion that it is the male gametes that “do” something to the female gametes in fertilisation (cf. p. 24, s. 3). Note also that in this diagram combinations of like factors are represented by pairs of discrete entities (A A and a a respectively), whereas Mendel otherwise represents their product by one factor only (A and a); cf. p. 17, s. 6 and p. 30, s. 7.
This does not so much constitute a table or formula, otherwise Mendel’s preferred media of representing abstract relationships, but a diagram. The following sentence makes clear that it is not so much supposed to represent the combinatorial product but the actual process of fertilisation. In this respect it is notable that the arrows point from (male) pollen cells to (female) germ cells, hence retaining a notion that it is the male gametes that “do” something to the female gametes in fertilisation (cf. p. 24, s. 3). Note also that in this diagram combinations of like factors are represented by pairs of discrete entities (A A and a a respectively), whereas Mendel otherwise represents their product by one factor only (A and a); cf. p. 17, s. 6 and p. 30, s. 7.
germ cells = Keimzellen See p. 24, s. 4.