Photographer 



1. keep continuous watch on framing, exposure, focus and film 

 supply of all cameras, change film as required 



2. keep watch on the over-all behavior of the model 



3. general instructions for operating 16 ram time-lapse and 35 

 mm Graf lex cameras 



a. operate 16 mm time-lapse Bolex vdth 15 mm Eastman Cine 

 f-2.7 objective and Type A Kodachrome in ICO foot rolls 

 at the rate of 1 frame per second 



b. operate 35 mm Graf lex Photorecord camera with 44 ram 

 Vfollensak f-3.2 objective at air pressure of 22 lbs 

 using 100 foot rolls Type A Kodachrome at the rate of 



1 frame every 7*5 seconds. Synchronize with model clock 



c. operate 35 cm Leica viith 12? mm V/ollensak objective 

 f-4i5 at optional intervals during runs to equilibrium 

 and at intervals of approximately one week during wind 

 tests. Include the vicinity immediately adjacent to 

 Freeport Sulphur Company area in field of view. Try to 

 record significant changes or developments of the bleed 

 water patterns i 



4. make serial photographic record of model tests as follows: 

 a» run to equilibrium without wind - run both 16 and ^^ mm. 



cameras 



b. run to summer wind equilibrium - run both 16 and 35 ram 

 cameras 



c. return to no-wind equilibrium - no photographs 



d. run to winter wind equilibriiun - run both 16 and 35 ram 

 cameras 



e. return to no-wind equilibrium - no photographs 



f . cardinal and intercardinal winds - start 16 and 35 mm 

 cameras when equilibrium is attained, continue photo- 

 graphing until one-half monthly progression of tides has 

 passed. 



5. keep log of photographs and model behavior 



Completion duties 



1. secure all electrical machinery and lighting equipment 



2. flush model free of distributed acid 



3. dry off land areas with sponges 

 4* secure work lights 



