One of the gravest charges ever made against
science is that biology has now put it into our
power to corrupt both the body and the mind of
man.
♪By scientific means, the charges runs, we can
now breed different kinds different races of
human beings, degrading some, making
aristocrats of others, adapting others still to
special puposes: treating them in fact like dogs,
for this is how we have treated dogs♪
〜ingのとこは分詞構文で訳せばいいのでしょうか？あと、runのうまく当てはまる訳がないのと:以降がよく分からないです。。