Helen: Now, the next section’s the procedure. I sent you the [1] of that.
Colin: Yeah. It was clear, but I don’t think we need all these [2] of what time we left and what time we got back and how we divided up the different research tasks.
Helen: OK. I’ll look at that again.
Colin: Then we have to [3] our method of [4] in detail. So let’s begin with how we measured wave speed. I was surprised how [5] that was.