NOAA Photo Library Banner
Takes you to the Top Page Takes you to the About this Site page. Takes you to the Contacts page. Takes you to the HELP page. Takes you to the Credits page. Takes you to the Collections page. Takes you to the search page. Takes you to the Links page.

NOAA Photo Library Image - ship4434

Figure 58. Classen device for the measurement of carbon dioxide in sea water. The German chemist Alexander Classen elaborated on the use of this device in 1876. The work of Wilhelm Borchers in 1878 on the determination of carbonic acid in mineral water that led to the use of this instrument. After improvement , it was used by Hercules Tornoe on the Norwegian North Atlantic expedition.

Image ID: ship4434, Voyage To Inner Space - Exploring the Seas With NOAA Collect
Photographer: Y. Berard
Credit: Oceanographic Museum of Monaco

Category: Oceanography/

High Resolution Photo Available





Publication of the U.S. Department of Commerce, National Oceanic & Atmospheric Adminstration (NOAA),
NOAA Central Library
NOAA Privacy Policy | NOAA Disclaimer
Last Updated:
May 12, 2014