Which preposition to use with summation

of Occurrences 6%

But as they have been sufficiently emphasized in the foregoing detailed descriptions, I need only repeat my conclusion, from the summation of evidence, that this young orang utan exhibited numerous free ideas and simple thought processes in connection with the multiple-choice experiment.

for Occurrences 1%

A poem which is, in some sort, a summation for its time of the values of life, will inevitably concern itself with at least one figure, and probably with several, in whom the whole virtue, and perhaps also the whole failure, of living seems superhumanly concentrated.

Which preposition to use with  summation