430 



Part J 1 1. — Eleventh Annual Report 



TABLE III. — Temperature of Water— North Carr Rock 

 Light Vessel. 



Ten-day Period. 



Observations, 9 a.m. 



Observations, 3 p.m. 



Air. 



Surf. 



12 fms. 



Bot 

 24 fms. 



Air. 



Surf. 



12 fms. 



Bot. 

 24 fms. 



1891. 



















Apr. 1-10 



8-9 



4-7 



4-8 



4-9 



5*6 



4-8 



4-9 



4-8 



n 11-20 



7-0 



5 5 



5-6 



5-2 



8-6 



5-9 



6-0 



5 1 



21-30 



9-5 



6-2 



6-6 



5 7 



8-4 



6-4 



6-7 



6-0 



May 1-10 



6*6 



6 '6 



6-3 



g.g 



7 "9 



6*8 



6*3 



«;»7 

 o / 



11-20 



7-6 



7-7 



7 6 



6-6 



11-9 



7-6 



7-7 



7 1 



" 21-31 



8-2 



8-3 



7-8 



71 



8-7 



8-6 



8-4 



7-2 



June 1-10 



11 0 



9 0 



9-0 



8-7 



111 



9-7 



9-5 



8-6 



„ 11-20 



13-4 



10-2 



10-3 



8-6 



14 5 



10-4 



10-9 



8-6 



„ 21-30 



15-6 



12-0 



11-9 



12 7 



15-4 



115 



12-0 



12-8 



July 1-10 



15 3 



12-0 



12 4 



16-0 



15 6 



12 7 



12-3 



14-7 



„ 11-20 



17 2 



12 9 



13-0 



124 



15 0 



13 4 



13 2 



12-4 



,, 21-31 



14'7 



12 2 



12-8 



12-6 



15 1 



13 0 



13-0 



13-3 



Aug. 1-10 



14-0 



12 3 



13-0 



12-4 



16 3 



12-8 



13-6 



12-3 



„ H-20 



14 6 



12 4 



13 2 



12 7 



16-8 



12-8 



13 5 



12 7 



„ 21-31 



13-0 



12 3 



13-3 



12-5 



13 4 



12 5 



13-5 



12-6 



Sept. 1-10 



14-9 



12 4 



13 2 



11-9 



17 4 



12-7 



13 7 



12 2 



m H-20 



16-1 



12-5 



13 1 



12 6 



17 3 



13 0 



13-4 



12-7 



„ 21-30 



12 5 



11-6 



123 



11-7 



14 4 



11-9 



12 6 



11-9 



Oct. 1-10 



12 H 



110 



11-7 



11-9 



137 



11-4 



11-9 



12 1 



,, 11-20 



10-2 



9-9 



10 2 



111 



122 



10 1 



10 1 



11-2 



„ 21-31 



9-0 



9-8 



10-4 



10-9 



10 7 



97 



10-2 



10-7 



Nov. 1-10 



9-6 



9-4 



91 



10 0 



10 0 



9-6 



9-4 



101 



„ 11-20 



8-7 



9-0 



9-0 



97 



11 0 



9-3 



91 



9 1 



„ 21-30 



4-9 



7-6 



S-4 



8-4 



6 4 



7-9 



8-9 



8-7 



Dec. 1-10 



7-9 



7-9 



8-4 



8-fi 



8-3 



7-7 



8-5 



8-6 



„ 11-20 



4 0 



6-8 



7-7 



8-0 



5 0 



5-9 



7 5 



8-0 



u 21-31 



4 4 



6-2 



7 4 



7-8 



5 4 



G-3 



7-4 



7-6 



TABLE IV. — Temperature of Water — 

 North Carr Rock Light Vessel. 

 Monthly Means. 





Observations, 9 a.m. 



Observations, 3 p.m. 



Month. 



















Air. 



Surface. 



12 fms. 



Bottom 

 24 fms. 



Air. 



Surface. 



12 fms. 



Bottom. 

 24 fms. 



1891. 



















April 



8-5 



5-5 



5-7 



5-3 



7 5 





5-8 



5 3 



May 

 June 



7-5 



7-5 



7 2 



6-5 



9-5 



7-7 



7 5 



G-7 



13 3 



10-4 



10 4 



10-0 



137 



10 5 



10 -8 



100 



July 



157 



12 4 



12-7 



13 7 



15-2 



13 0 



12*8 



13 5 



August 

 September 



13-9 



12-3 



13 2 



12 1 



15-5 



127 



13 5 



12 5 



14-5 



12-2 



129 



12 1 



16 4 



125 



13 2 



12 3 



October 



10 7 



10-3 



10-8 



11-3 



122 



10-4 



10 7 



U-8 



November 



7-7 



8-7 



8-9 



9-4 



91 



8-9 



9-1 



9-3 



December 



5 4 



7-0 



7-8 



8-1 



G-2 



6-6 



7-8 



8-1 



