436 



Part 111. — Eleventh Annual Report 



TABLE XII. — Specific Gravity and Calculated Salinity at 

 North Carr Rock Light Vessel. 



Observations, 9 a.m. 



Ten-Day 















Period. 



Surface. 



12 *atnoms. 



.bottom (24 i. 



> 























Sp. Gr. 



Sal. 



Sp. Gr. 





Sal. 



Sp. Gr. 



S 



al. 



1891. 





















Apr. 1-10 





















„ 11-20 





















„ 21-30 



24-6 



3*10 









24 : 9 



3-16 





May *1-10 



25-3 



3-23 









25-3 



3- 



23 



„ 11-20 



24-8 



3-14 









25-0 



3- 



18 



„ 21-31 



25-2 



3-21 









25-3 



3-23 





June 1-10 



25-0 



3-18 









25 2 



321 





„ 11-20 



25 1 



3-20 









25 5 



3-26 





,, 21-30 



25 1 



3-20 









25 -e 



3- 



27 



July 1-10 



25-4 



3-24 



25*4 





3 : 24 



25-5 



3-26 



„ 11-20 



25 5 



3-26 



25-6 





3-27 



25-6 



3-27 



„ 21-31 



25-4 



3-24 



25-5 





3-26 



25-6 



3- 



27 



Aug. 1-10 



25 3 



3-23 



25-4 





3-24 



25-3 





23 



„ 11-20 



25-4 



3-24 



25 5 





3-26 



25-6 



3-27 



„ 21-31 



25-4 



3-24 



25-4 





3-24 



25-4 



3- 



24 



Sept. 1-10 



25-3 



3-23 



25 4 





3-24 



25 5 



3- 



26 



„ 11-20 



25 1 



3-20 



25-3 





3-23 



25-4 



3-24 





,, 21-30 

 Oct. 1-10 



25-6 



3-27 



25 6 





3 27 



25-8 



3' 



30 





25-7 



3-29 



25-6 





3-27 



25-6 



3- 



27 



„ tll-20 



25-6 



3 27 



25-6 





3-27 



25-5 



3 



26 



,, 21-31 



25-0 



3-18 









25-2 



3- 



21 



Nov. 1-10 



24-8 



3-14 









24-9 



316 



„ 11-20 



25-0 



3-18 









25-2 



3- 



21 



21-30 



24-5 



3-08 









24-2 



3- 



03 



Dec. 1-10 



24-9 



3-16 









25-1 



3- 



20 



„ 11-20 



24-8 



3 14 









24-9 



3-16 



21-31 



24-7 



312 









25 0 



3- 



18, 







Observations, 3 p.m. 



1891. 

















Apr. 1-10 

















,, 11-20 

















„ 21-30 



24-6 



3-10 







25-0 



3*- 



18 



May *1-10 



25-5 



3-26 







25-6 



3- 



27 



„ 11-20 



25-0 



3-18 







25-2 



3-21 



„ 21-31 



25 5 



3-26 







25-5 



3-26 



June 1-10 



24-9 



316 







25-3 



3- 



23 



„ 11-20 



25 1 



3-20 







25(i 



3- 



27 



„ 21-30 



25-2 



3 21 







25-6 



3-27 



July 1-10 



25-4 



3-24 



25-5 



3-26 



25-7 



3 29 



H-20 



25-7 



3-29 



25-6 



3'27 



25-6 



3 27 





„ 21-31 

 Aug. 1-10 



25-3 



3-23 



25-7 



3-29 



25-7 



3-29 





25 4 



3-24 



254 



3-24 



25-6 



3 27 





„ 11-20 



25-4 



3-24 



25-5 



3-26 





25-5 



3-26 





„ 21-31 



25-4 



3-24 



25-5 



3-26 





25-6 



3 27 





Sept. 1-10 



25-4 



3-24 



257 



3-29 





25-7 





29 





„ 11-20 



25-2 



3*21 



25-4 



3 24 





25 5 



3 26 





,, 21-30 

 Oct. 1-10 



25-9 



3-32 



25-9 



3-32 





26-0 



3-34 





25-6 



3-27 



25-7 



3-29 





25-6 



3-27 





„ +11-20 



25-6 



3-27 



25-6 



3 27 





25-6 



3-27 





„ 21-31 



24-8 



3-14 









25 2 



3 21 





Nov. 1-10 



25-5 



3-26 









24-9 



3 16 





„ 11-20 



25-5 



3-26 









25-6 



3-27 





21-30 



24-8 



3-14 









24-5 



3-08 



Dec. 1-10 



25 1 



3-20 









25 2 



321 



„ 11-20 



24 5 



3-08 









24 7 



3- 



12 



,, 21-31 



24-8 



3-14 









24-9 



3- 



16 



* 6th, 7th, 8tb, and 9th only. 



t 12th, 13th, and 15th only. 



