Yesterday wa a very long day. However, it was still a lot of fun, and I learned quite a lot. I started out at about 10:30 collecting samples for the gas chromatograph and for my microbial samples. After a break for lunch I learned how to check the mosaics that were being made from the ROPOS dive. Then I did more oxygen titrations until a break for dinner at around 5:30. I finished the oxygen titrations after dinner, and then worked checking the mosaics from 8-12. I got to sleep around 12:30, and then woke up at 3:30 for my watch from 4-8. I didn't think I would do too well with only 3 hours of sleep, but it's not that bad at all. I have about 4 more hours of work with checking the mosaics, and then I will probably take a nap around noon. After that I don't have anything to do until 8 that night, and then we are transiting to Newport.