STATIONS AND DATA. 



15 



Station No. 



4. 1 mile southwest of southern end of Loggerhead Key, old bank of dead coral. May 

 16, 1919. 



6. In the moat at Fort Jefferson, on Garden Key, in 4 to 5 feet of water; higher tem- 

 perature than outside; muddy bottom. May 17, 1919. (See Tortugas papers 

 for general hot, stagnant conditions.) 



8. In the moat at Fort Jefferson, halfway around from the entrance; slightly weedy 



bottom. May 17, 1919. (Much fine material in washing.) 



9. In the lagoon on Long Key, in 6 to 12 inches of water. May 17, 1919. (Water at 



low tide warm to the hand, stagnant.) 

 10. Middle of channel, upper end of Southwest Channel, between buoys N4 and C3; 

 11 fathoms; bottom temperature 23.2° C; sandy bottom. May 19, 1919. 



12. Between White Shoal and Loggerhead Key; 7 fathoms; bottom temperature 23° C; 



hard bottom. May 19, 1919. 



13. Between White Shoal and Loggerhead Key; 11 fathoms; bottom of fine sand. May 



19, 1919. 



14. 1 mile northeast of Loggerhead Key; 12 fathoms; bottom of fine sand. May 19, 1919. 



18. Middle Key, bearing due south, Texas Rock bearing due west; 7 fathoms; bottom 



of fine white sand. May 19, 1919. (Many Foraminifera.) 



19. Northeast Key Harbor; 5.75 fathoms; bottom of very fine, whitish sand. May 19, 



1919. (Numerous Foraminifera, mostly MiUolidae.) 



20. 0.5 mile northwest of East Key; 7 fathoms; bottom of fine white sand. May 19, 



1919. (Original sample, 120 c. c, washed through 80-mesh, leaving 10 c. c.) 



21. 0.25 mile northwest of East Key; 6 fathoms; bottom of fine white sand. May 19, 



1919. (Original sample, 62 c. c, washed through 80-mesh, leaving 48 c. c.) 



22. 0.5 mile west of Middle Key; 6 fathoms; bottom of fine, white, soft sand. May 19, 



1919. (Original sample 75 c. c, washed through 80-mesh, leaving 30 c. c.) 



23. Between Middle Ground buoy and buoy N8 at north end of White Shoal; 10.5 fath- 



oms; bottom of soft, muddy, white sand. May 19, 1919. (Original sample, 80 

 c. c, washed through 80-mesh, leaving 30 c. c.) 



24. 0.5 mile northwest of Loggerhead Key light, inside main reef; 3.5 fathoms; bottom 



of coarse white sand. May 21, 1919. 



27. Between Garden Key and Bird Key; 7 fathoms; bottom of soft white sand and mud 



(Drewite). May 22, 1919. (Original sample, 300 c. c, washed through 80-mesh, 

 leaving 27 c. c.) 



28. Bird Key Harbor; 4.75 fathoms; bottom of fine white sand. May 22, 1919. (Origi- 



nal sample, 150 c. c, washed through 80-mesh, leaving 30 c. c.) 

 30. 1.5 miles south of Bird Key; 2 fathoms; sand in pocket of reef. May 22, 1919. 

 37. 1.5 miles due west of Loggerhead Key light; 11 fathoms; bottom of fine sand. May 



24, 1919. 

 42. 2 miles west of Loggerhead Key light; 18 fathoms; bottom of sand. May 25, 1919. 



Table 5. 



