Die Anzahl der Hybriden verhielt sich daher zu der Zahl der Constanten wie 1,93 : 1.
The quantity of hybrids therefore stood in a ratio of 1.93 : 1 to the number of constant forms.

quantity = Anzahl See p. 3, s. 8.

hybrids = Hybride See the following note.

constant forms = Constanten Capitalisation reveals that Mendel is using a nominalisation of the adjective constant here. Bateson consequently has “constants”, Sherwood, somewhat awkwardly, “constant breeding forms”; see p. 15, s. 7.