I was surprised to see that On the construction of balanced incomplete block designs by Raj Chandra Bose was published in a journal named Annals of Eugenics (see here).

I double checked and it seems that the journal was indeed focused on eugenics and the article does not relate to eugenics or genetics in any way. So why would a mathematician decide to publish in such a journal and why was the article accepted?

It appears that there are also other mathematics articles published in the same journal.