Originally Posted by labman
I am not sure what you have, or what you are trying to do. If you just want a second light to come on whne you switch the fiorst on, the first answer was correct. You may need to post back with just what wires youhave at each of the 3 locations. To have one switch for both lights what you need is for the power from the black hot wire to flow to the switch and then to the first light. Then a second pair of wires connects from the wire to the first to the second. The white wires bypass the switch running directly to the silver terminal of each light.
If the feed is to the first light (one pair of wires in, and another out), then you can't power the second light by a pair of wires from the switch.