Karl Marx and Australia

Karl Marx seems to mention Australia in his works quite a bit (ie The German Ideology, Capital, he also wrote articles ie in the Neue-Oder Zeitung, March 7, 1855, and elsewhere).
I'm going to make this claim and not fully back it up, because: one, I'm lazy, and two, it's something I want to explore further at a later time / really it's rather insignificant, and is mostly due to commentaries on colonization, the newness at the time, labor movements, and so on. This is a note to self, that will never be fulfilled.

I may just notice it more than the others because of my sentimental attachments to Australia. It's sorta like the Baader-Meinhof Phenomenon, a form of synchronicity.