684 



MR GEORGE MUIRHEAD ON 



above mentioned salmon rod-fishing season in each of the four years from 1898 to 1901 

 inclusive. The height of the water in the river daily is indicated by the blue tint on 

 the Diagrams, on which are also shown the daily readings of the barometer, as well as 

 the general state of the weather with regard to rainfall, sunshine, and wind. The 

 average numbers of salmon taken daily by each ' rod ' during each of the above 

 mentioned four seasons were: in 1898, 1'26; in 1899, 1*31; in 1900, 1*46; and in 

 1901, 1*41, — the average for the four years being 1*36. 



For the number of ' rods ' which were fishing daily, and the number of salmon 

 caught by them daily, I am indebted to His Grace the Duke of Eichmond and Gordon, 

 who personally keeps very accurate records of them. 



Table showing the highest and lowest weekly temperature, the amount of 

 variation in the weekly temperature, and the average number of salmon 

 caught by each ' rod ' daily dtcring each week of the rod-fishing season of 



1898. 



Date. 



Temperature. 



Amount 



of Variation 



in Temperature. 



Average Number 



of Salmon caught 



daily by each 



'Rod.' 



Sept. 3-10 

 12-18 

 19-24 

 26-Oct. 1 



3-9 

 10-15 



53-65° 

 52-63 

 50-55 

 52-48 

 58-51 

 52-47 



12° 

 11 



5 

 4 



7 

 5 



0-40 

 0-70 

 1-60 

 1-94 

 1-38 

 1-59 



Table showing the highest and lowest weekly temperature, the amount of 

 variation in the weekly temperature, and the average number of salmon 

 caught by each ' rod ' daily during each week of the rod-fishing season of 



189 9. 



Date. 



Temperature. 



Amount 



of Variation 



in Temperature. 



Average Number 



of Salmon caught 



daily by each 



'Rod.' 



Sept. 4-9 

 11-16 

 18-23 

 25-30 



Oct. 2-7 

 9-14 



55-62° 

 52-60 

 53-46 

 49-43 

 48-44 

 53-44 



7° 

 S 

 7 

 6 

 4 

 9 



1-12 

 1-02 



1-45 

 1-88 

 1-64 

 0-78 



