18 WORK OF THE CARNEGIE AND SUGGESTIONS FOR FUTURE SCIENTIFIC CRUISES 



LIST OF FIGURES 



Fig. 1. Paul at the evaporimeter 



Fig. 2. A Richter and Wiese deep-sea reversing thermometer protected against pressures 



Fig. 3. The Stevenson meteorological shelter on the quarter-deck 



Fig. 4. A "snapper" type <jf bottom sampler 



Fig. 5. Meteor "glass-tube" type of bottom sampler 



Fig. 6. Paul at the plankton pump 



Fig. 7. The Wenner salinity bridge 



Fig. 8. The radio receiver designed by the Naval Research Laboratory and used on the Carnegie 



Fig. 9. Recording apparatus for electrical conductivity of the atmosphere 



Fig. 10. The scientific staff aboard the Carnegie 



Fig. 11. The watch officers and the engineer 



Fig. 12. Steward, cook, and messboys 



Fig. 13. The oscillator of the sonic depth finder installed in the keel 



Fig. 14. The Carnegie under a full spread of canvas in the Pacific 



Fig. 15. Declination observations with the marine collimating compass 



Fig. 16. Scott at the "deflector" 



Fig. 17. Nansen water bottles, rack and storage box, on quarter-deck 



Fig. 18. A silk plankton net coming up after being towed 



Fig. 19. Seiwell at work in the chemical laboratory 



Fig. 20. Parkinson testing the potential gradient recorder 



Fig. 21. Quarter-deck of the Carnegie during an oceanographic station when the ship is hove to 



Fig. 22. Captain Ault about to remove a "Nansen bottle" which contains a sample of sea water 



Fig. 23. Paul and Soule preparing bottles for the water samples 



Fig. 24. Withdrawing samples of sea water for chemical analysis. 



Fig. 25. The biologist using a dip net from the "boom walk" 



Fig. 26. Torreson observing a pilot balloon with the specially designed theodolite loaned by the U. S. Navy 



Fig. 27. Weighing the hydrogen-filled balloon 



Fig. 28. Captain Ault releasing a pilot balloon 



Fig. 29. A propeller device for reversing the deep-sea thermometers 



Fig. 30. Captain Ault, Torreson, and Scott following the pilot-balloon 



Fig. 31. Captain Ault about to descend in the diving helmet to untangle the sounding wires 



Fig. 32. The scientific personnel of the Carnegie on leaving San Francisco in September 1929 



Fig. 33. Pendulum apparatus installed in the cabin for measuring the force of gravity 



Fig. 34. The pendulums of the Vening Meinesz gravity apparatus 



