Whoa man. The ferric oxalate and the metal salt are mixed together just before you are ready to coat your paper. The drop counts that Dick has illustrated in his graphs and tables allow you to adjust the contrast of the resulting print to match the negative you are working with. The procedure is similar in spirit to split filter printing in silver. The #1 solution contains no restrainer - and is analogous to a low contrast "grade 1" filter. The #2 solution (the one with the restrainer) is analogous to the "grade 5" filter. As you alter the proportions of each, you can achieve a nice range of various contrasts.

Ask lots of questions. Between Jorge, William Blunt, Kerik and myself, we can probably save you a year's worth of frustration.