 CTD/Rosette, which records conductivity, temperature, and depth, is lowered down Photographic Print 24 in. x 18 in. Unframed Framed / Mounted |  Oceanographer David Allen injects sample into nutrient solution Photographic Print 18 in. x 24 in. Unframed Framed / Mounted |  Archeologist Harald Meller discusses an excavation with colleagues Photographic Print 24 in. x 18 in. Unframed Framed / Mounted |  Heinrich Wunderlich tests the sky disks construction and composition Photographic Print 24 in. x 18 in. Unframed Framed / Mounted |