Add Dock to second monitor on Mac OS X

No.

At least not native. OS X ties the menu bar and dock to one "main" monitor and uses the second as secondary displays.

this will not add a second dock to your display, however it will move the dock to the second monitor. How? go to System Pref->Displays->Arrangement then move the second monitor below the main one, so when refreshed your dock appears on your second display ( notably the screen position is bottom ) hope this helps...