attached, it performs the same functions as a 

 cast of Nansen bottles and reversing thermom- 

 eters to limited depths, but with less accuracy. 

 It is useful for studies of shallow water areas, 

 bays, and estuaries, where rapidity of sampling 

 is of greater importance than the degree of 

 accuracy of temperatures. 



The sea sampler is operated in much the 

 same manner as the bathythermograph, and 

 is lowered from a bathythermograph winch. 

 The temperature is recorded both during lower- 

 ing and hoisting on a smoked-glass slide. The 

 water sampling bottles have valves at each end 

 and are sent down open. They are closed at 

 predetermined depths while the sampler is 

 rising to the surface. 



2-63 Equipment Needed to Operate the 

 Spilhaus-Miiler Sea Sampler. — In addition to 

 a standard bathythermograph winch, with 

 associated wire and boom, the following equip- 

 ment is needed. This equipment is provided in 

 the wooden shipping case for the sampler. 



1. 100 smoked-glass slides, in two boxes. 



2. Two calibrated grids for temperature- 

 depth, in mounts. 



3. One slide viewer. 



4. One bucket thermometer and case. 



5. One can of dipping lacquer. 



6. One can of lacquer thinner. 



7. Slide forceps. 



8. One dipping jar. 



9. One tube of stopcock grease. 



10. Two bathythermograph swivels and 

 shackles. 



11. One small plastic funnel. 



12. One Instruction Book for Bathyther- 

 mographs. 



2-64 Assembling the Sea Sampler for 

 Operation. — Remove the sea sampler from the 

 box and shackle the swivel on the bathythermo- 

 graph wire to the eye on the nose of the sampler. 

 Remove the sample bottles from the frame, 

 open the valves of the bottles and replace them 

 in the frame. Insert a smoked slide in the shde 

 holder. The sea sampler is now ready to be 

 lowered. Detailed instructions for each opera- 

 tion are given below. 



2-65 To Remove (he Sample Bottle.— Each 

 sample bottle is made of brass, holds about 

 125 ml. of water, and has a valve at each end. 

 To remove the sample bottle from the frame, 

 pull out the plunger on the aft bottle retaining 

 ring, lift the bottle up, forward and out as 

 shown in figure 2-15. 



2-66 To Open the Sample Bottle.— After 

 the bottle has been removed, turn the valve 

 knob on the aft end of the bottle clockwise 

 until the bottle is open. Hold it in the open 



26 



Figure S-15. Removing the bottle. 



position and lift the tripping mechanism on the 

 narrow side into a vertical position as shown 

 in figure 2-16. The arrow indicates the trip- 

 ping mechanism. When the tripping mechan- 

 ism is vertical, both valves are locked open 

 and the bottle is ready to be replaced on the 

 sea sampler. 



2-67 To Replace the Sample Bottle.— To 

 replace the sample bottle in the frame, place 

 the spacing plugs shown in figure 2-17 on the 

 forward end of the bottle in the holes provided 

 on the forward retaining ring. Pull out the 

 plunger on the aft bottle retaining ring, lower 

 the bottle into position and release the plunger. 

 Make sure the plunger reseats itself properly 

 to hold the bottle. There is a number on the 

 aft end of each bottle and a corresponding 

 number on the retaining ring. Always replace 



Figure 2-16. Bottle opened. 



H. O. 607 



