92 Mr. Dick on the [August, 



Spring, published in your 43d and 47th numbers, I now- avail 

 mvself of being on the spot to copy for your Annals the follow- 

 ino- continuation of my father's register of its alternations. The 

 thermometer was regularly marked as formerly ; but as the tem- 

 perature of the atmosphere seems to have had no influence at all 

 in producing the phenomena, it is unnecessary to encumber the 

 columns with it. 



I have not leisure at present to send you, as formerly, a table 

 of averages ; and if I had, a glance at the particular items of the 

 register "will convince you that little satisfaction could be had 

 from such a view. It is evident from the great general increase 

 of the discharge of water which took place in the month of 

 February last, and which seems to have continued almost up to 

 the end of the period embraced by the memoranda, that an 

 actual increase of the body of water in the mine must have taken 

 place in that month. 



An attentive observation of the motions of the well has satis- 

 fied my father that it is much more rapidly affected by any 

 atmospherical change than the mercurial column. It must, 

 therefore, frequently happen, that when both are marked at the 

 same moment, an apparently anomalous result will be afforded, 

 owing to the mercury yielding more tardily to the change of 

 density. A visible alteration as well in the increase as in the 

 diminution of discharge has often been noticed to take place 

 whilst the observer has been standing by the fountain. 



Register of the alternating Appearances in the Fount ainhall 

 Chalybeate Spring, continued. X. B. ^Su Measurements made 



on Sundays.* 



1S16. , , 



June 22, M, R,23£ pints. B, 2974.— A, 31| pints. B, 2965. A great deal 

 of thunder, lightning, and rain, with hail. 



24, M, R, 23 pints. B, 29-58 —A, 19 pints. B, 29-63. 



■25, H, R, 23 pints. B, 2965.— A, 27J pints. B.29-58. 



26, M, R, 32 pints. B, 2946.— A, 31| pints. B, 29-39. 



27, M, R, 20 pints. B, 29 50.— A, 18 pints. B, 29-59. 



28, M, R, 16 pints. B, 2970.— A, 20 pints. B, 29-70. 



29, M, R, 22§ pints. B. 29-69— A, 24| pints. B, 2964. 

 July 1, M, R, 234 pints. B. 29 39.— A, 21* pints. B, 2939. 



2, M, R, 23£ pints. B. 29-37.— A, 23| pints. B, 2937. 



3, M, R. 22 pints. B, 29-37.— A, 21| pints. B, 29-39. 



4, H, R, 22| pints. B, 2940.— A, 25 pints. B, 29-39. 



5, M, R, 21 pints. B, 29-39.— A, 20| pints. B, 2942. 



6, M, R, 2)i pints. B, 29-42.— A, 22J pints. B, 29-40. 



8, M, R, 28g pints. B, 29-32. A great fall of rain last night and this 



morning. — A, 22 pints. B, 29 : 32. Rain all dav. 



9, M. R. 22 pints. B. 29-35.— A. 23g pints. B, 29-30. 

 10, M, R, 25 pints. B, 29-25.— A, 25£ pints. B, 2921. 



* " The letter R, signifies that the well was running over ; F, that it was full ; 

 In. -means the inches down, unless when specified otherwise; M, is morning; and 

 A, afternoon. It is also to be noticed that the degree of Fahrenheit's thermometer 

 having been remarked, it is indicated by T; and afterwards the elevation of the 

 barometer having been also attended to, its height is indicated by B." — (See Mr. 

 Dick's former paper, Annals, viii. 6.) 



