sentences:  By the middle of the 20th century scientific diving was being done around the U.S. in surface supplied shallow water helmets and standard diving dress.During WWII Jacques Cousteau and Frédéric Dumas used the Aqua-Lung for underwater archaeology to excavate a large mound of amphorae near Grand Congloué, an island near Marseilles.The first scientific diver at Scripps Institution of Oceanography was Cheng Kwai Tseng, a biologist from China and graduate student during World War II, who used Japanese surface-supplied equipment to collect algae off the San Diego coast in 1944.