of the Fishery Board for Scotland. 315 



TABLE XI. — Specific Gravity and Calculated Salinity of 

 Abertay Lightship. 



Ten-day Periods. 





9 A.M. 



3 P.M. 



Period. 



Surface. 



3 fathoms. 



Bottom. 



Surface. 



3 fathoms. 



Bottom. 





Sp.Gr. 



Sal. 



Sp.Gr. 



Sal. 



Sp.Gr. 



Sal. 



Sp.Gr. 



Sal. 



Sp.Gr. 



Sal. 



Sp.Gr. 



Sal. 



1893. 



























Jan. 1-10 



2-y\ 



282 



23 '5 



2'92 



23 '7 



2 '95 



24'6 



<M0 



24 - 8 



314 



25 - 0 



3'18 



,, 11-20 



23 "5 



292 



23'8 



2"97 



24 - 3 



3'05 



24 - 2 



3*02 



24'6 



310 



24'8 



314 



,, 21-31 



23"3 



2 '87 



24'1 



301 



24 '7 



3*12 



23 - 4 



2 - 90 



24 - 0 



3'00 



245 



3 - 08 



Feb. 1-10 



22'7 



2 "76 



23*4 



2'90 



23 '8 



297 



235 



292 



243 



3 '05 



24 - 8 



314 



„ 11-20 



20'8 



243 



22*0 



2'64 



22 '7 



2'76 



242 



303 



24"9 



316 



250 



3'18 



„ 21-28 



24"1 



3 01 



23*0 



2 - 80 



25 '0 



318 



23'1 



2 '82 



24 "2 



jj 03 



24'6 



310 



Mar. 1-10 



22 '3 



2'70 



22 '8 



2*78 



23'3 



2 "87 



24'7 



3"12 



24 '9 



316 



25 "2 



321 



,, 11-20 



22 "6 



275 



23'5 



2*92 



24"0 



3'00 



231 



2 - 82 



246 



310 



24"8 



3-14 



„ 21-81 



24 '0 



3 - 00 



24*4 



3 - 06 



25 0 



3'18 



24 - l 



301 



24 - 5 



3"08 



249 



316 



Apr. 1-10 



241 



3'01 



24*4 



3 - 06 



24'6 



3'10 



25 - 0 



318 



25 - 2 



321 



25 4 



3 24 



,, 11 20 



23'8 



2 97 



24 3 



3 - 05 



24'4 



8'06 



24 "8 



3'14 



25 - 0 



3 - 18 



25 - 4 



324 



„ 21-30 

 May 1-10 



246 



810 



24 - 9 



316 



2-V3 



3 '23 



24'4 



3 - 06 



24 - 7 



312 



25 '0 



3*18 



24"8 



314 



24*9 



3"16 



25 0 



3 - 18 



252 



321 



25'2 



3 21 



25 4 



3 24 



„ 11-20 



24"9 



316 



25 - 0 



3*18 



25'3 



3'23 



251 



8'20 



25'3 



3'23 



25 4 



3 - 24 



>, 21-31 



249 



316 



25'1 



3*20 



25*4 



324 



24 '8 



3 - 14 



250 



3 -18 



25 - 2 



321 



June 1-10 



253 



3 28 



25-4 



3 24 



256 



3-28 



25-0 



3-18 



25-2 



321 



25-5 



3-26 



,, 11-20 



254 



3-24 



25-4 



324 



25-6 



3-28 



256 



3-28 



257 



3-29 



25-9 



3'32 



21-30 

 July 1-10 



26-3 



3 23 



25-4 



3-24 



25 6 



3-28 



25-5 



326 



25-6 



3-28 



257 



3-29 



25-6 



3-28 



25 9 



3-32 



26 0 



3-34 



25-5 



326 



25-6 



3-28 



259 



3-32 



„ 11-20 



25 4 



324 



25-5 



3-26 



25-8 



3 '31 



25-8 



331 



25-9 



3 '32 



26 1 



3-36 



21-31* 



25-8 



331 



25-8 



3 31 



26-1 



3'36 



246 



8-10 



25 1 



3-20 



25 2 



321 



Aug. 1-10 



26 9 



3 32 



25-8 



3-31 



261 



3-36 



25 3 



323 



25-5 



326 



25-7 



3-29 



A H-20 



25-2 



321 ' 



25-3 



323 



25-6 



3-28 



25 7 



3 29 



25-9 



332 



26 '2 



3-38 



21-31 



241 



301 



24-6 



3-10 



24-9 



316 



25-5 



326 



25-8 



331 



261 



3-36 



Sept. 1-10 



24-4 



3 06 



24-8 



314 



25 2 



3 21 



25-0 



318 



25-4 



3 24 



256 



3-28 



A 11-20 



25 3 



3 23 



25-4 



3-24 



25 5 



3 26 



25-2 



321 



25-4 



3-24 



25-9 



332 



21-30 



24-5 



3 08 



24-7 



3-12 



25-2 



321 



25-8 



331 



25-8 



3-31 



26-0 



334 



Oct. 1-10 



23-8 



2 97 



24-2 



3-03 



24 8 



3-14 



25 1 



3-20 



25-5 



3-26 



25-7 



329 



,, 11-20 



24-6 



310 



24-8 



314 



25-0 



3-18 



24 4 



3-06 



25-3 



323 



259 



332 



A 21-31 



280 



280 



23 5 



2-92 



24 1 



301 



253 



323 



255 



326 



25-8 



331 



Nov. 1-10 



22-5 



274 



23*3 



2-87 



24-2 



3-03 



24 9 



316 



25-0 



3-18 



253 



323 



n H-20 



246 



310 



25-0 



3-18 



251 



3-20 



25 0 



3-18 



25-3 



323 



25 4 



3 24 



„ 21-30 



23-5 



292 



24-1 



3 01 



24-8 



3-14 



254 



324 



25-6 



3-28 



25-7 



3-29 



Dec. 1-10 



22-5 



274 



23-8 



2-97 



24-3 



3-05 



23-9 



2-98 



24-6 



310 



251 



3-20 



i. H-20 



24-1 



3 01 



24-9 



3*16 



25-1 



3-18 



22-6 



2-75 



24-1 



3-01 



246 



310 



„ 21-31 



21-9 



2 62 ' 



23-2 



2-85 



23-9 



2-98 



23-7 



2-95 



24-9 



3 16 



252 



3 21 



* Only five clays' observations. 



TABLE XII. — Specific Gravity and Galculated Salinity of 

 Abertay Lightship. 



Monthly Means. 





9 A.M. 



3 P.M. 



Month. 



Surface. 



3 fathoms. 



Bottom. 



Surface. 



3 fathoms. 



Bottom. 





Sp.Gr. 



Sal. 



Sp.Gr. 



Sal. 



Sp.Gr. 



Sal. 



Sp.Gr. 



Sal. 



Sp.Gr. 



Sal. 



Sp.Gr. 



Sal. 



1893. 

 January 

 February 

 March 

 April 

 May 

 June 

 July 

 August 

 September 



October 

 November 

 December. 



23- 3 



22 5 



23 0 



24- 2 

 24-9 

 25*3 

 25 6 

 25 1 

 24-7 

 23-8 

 235 

 22 8 



2- 87 

 2 73 



2 82 



3 03 

 3 15 



3- 23 

 3-28 

 3*18 

 3 12 

 2 96 

 292 

 2-79 



23-8 



22- 8 



23- 6 



24- 5 



25- 0 

 25-4 

 25-7 

 25-2 

 250 

 24-2 

 241 

 24 0 



2-97 

 2-78 



2- 92 



3- 09 

 3-18 

 3-24 

 3-30 

 8'21 

 3-17 

 3-03 

 3-02 

 2 99 



24-2 



23- 8 



24- 1 



24- 8 

 25 2 

 25 6 

 26-0 



25- 5 

 25-3 

 24-6 

 247 

 24;4 



3-04 



2- 97 



3- 02 

 3 13 

 3-22 

 3-28 

 334 

 3-27 

 3-23 

 311 

 312 

 3-07 . 



24 1 



23 6 



24 0 



24 7 



25 0 

 25 4 

 25 3 

 255 

 25 3 

 24-9 

 25 1 

 23-4 



3-01 

 2-92 



2- 98 



3- 13 

 318 

 3-24 

 3-22 

 3-26 

 3-23 

 3 16 

 3-19 

 2-89 



24-5 

 24-5 



24- 7 

 25 0 



25- 2 

 25 5 

 25-5 

 257 

 25 5 

 25-4 

 253 

 24-5 



3-0S 

 3-08 

 3 11 

 3 17 

 3-21 

 3 26 

 3-27 

 3-30 

 3 26 

 3 25 

 3 23 

 309 



24- 8 



24 8 



25 0 

 25 3 

 25 3 



25- 7 

 25-7 

 260 

 25 8 

 25-8 

 255 

 250 



3 13 

 3 14 

 3 17 

 3 22 

 3 23 

 3 29 

 3 30 

 3 34 

 3-31 

 331 

 3 25 

 317 



Menn 



24-1 



3-01 



244 



3-07 



24-8 



3 15 



24-7 



3-12 



25 1 



319 



25-4 



3 24 



