Read this excerpt from The First Men in the Moon

During that first interview I gathered very little of the drift of his work. Half his words were technicalities entirely strange to me, and he illustrated one or two points with what he was pleased to call elementary mathematics, computing on an envelope with a copying-ink pencil, in a manner that made it hard even to seem to understand. "Yes," I said, "yes. Go on!" Nevertheless I made out enough to convince me that he was no mere crank playing at discoveries.
Which words from the quote above help you infer that Mr. Bedford was interested in Mr. Cavor’s research?
Half his words were technicalities entirely strange to me
...he illustrated one or two points with what he was pleased to call elementary mathematics
During that first interview I gathered very little of the drift of his work.
I made out enough to convince me that he was no mere crank playing at discoveries.