13. The sample changer recited in claim one, wherein stated conveyor means comprises an elevator system for sequentially relocating mentioned transportation suggests from a first position associating with reported observe into a second posture associating with claimed testing region; and whereby stated elevator system includes a cage having initially and https://share.evernote.com/note/24170d6c-ce7d-0f26-199f-c0f6fb5b5380