Douglas A. Berthiaume
Analyst
Well, Doug -- Isaac, excuse me, I think that our visibility hasn't changed very much. As you know, we, like most everybody in this business, don't operate with very significant backlogs. So most quarters, we have to generate, in that quarter, the business that we're going to ship and record as revenue. So we have all the tools that we've always had, which is discussions with our customers, historical run rates, projection of the strength of the economic environment, and we have a reasonably sophisticated process. But as we've seen, it's forecasts, and there are a lot of pieces of that, that move around in an individual quarter. We clearly thought and thought through most of this quarter that we had properly anticipated what was going to happen, and then, in very short order, it fell out of bed. We've looked at that, we've examined the underlying trends. Much like the first quarter, we saw this weakness in chemistry, and we didn't believe it. And in fact, that all turned around in the second quarter, and we're reasonably confident that, that's going to continue in the second half. We had a very strong first quarter in instruments, and then it dropped in the second quarter. We don't think that, that was anything we did. We don't think that, as I said, dramatic market share changes occurred. It's frustrating, I know it is for you, and it certainly is for us. But we continue to try to refine what we know, and we overlay what our product introductions are and what the customers are telling us, what the field is telling us. We try to apply a little degree of conservatism there. And -- but I can't tell you that our process has changed as a result of this. We just looked harder, looked harder at the backlog, looked harder at the customer forecast, and we continue to try to do our best. But we live in a world of uncertainty.