472 SEVENTH REPORT—1837. 
Sth Aug., 1837. WAVE XXIII. Depth 4 inches. 
Generated by Chamber D, from a height of 19 inches. Volume=683°7 inches. 
Transits observed by reflection as formerly in the positive wave. * 
Transits observed directly, and at successive transits in the negative wave. 
Observers 8 Patrick, y Hamil, 3} Donaldson—Transit, Russell. 
Statical level observed at { ¥ s O10 Corrected depth = 3°85 inches. 
A B Cc D E A B Cc D E 
feet. a sec.|6 sec. |y in.|3 in. yin. in. in. |! feet. asec. \sec.|y in,| 3 in. |9/in,|¥ in.| in. 
0: | 0-0 0-0 1:30|1-30 1°55/1-40] 5°32|| 200° | ... |55°5| 0750-75 | 1-00) 0°85) 4°77 
40°] ... | 115 1101-25 1-25/1-35| 5-15]| 240° | ... | 66°5| 0-60/0-70 ?| 0-85] 0-80) 4-67 
80: |... | 21-5 | 0-90/1-33] 1-15'1-43] 5-14]| 280° | ... | 790) 0-50\0-54 | 0-75) 0-64) 4-55 
120° | ... | 32:5 0-90'1:23 1°15 1:33] 5-09]| 820° | ... | 91-0) 0-50/0-45 | 0-75) 0-55) 4-50) 
169° | ... | 43-5 0:80/0:92 1-05 1-02 4°88|| 360: | ... sé! | ewe, seatsleemenpaces 
* This wave broke down immediately into two waves of nearly equal height. 
! 
5th Aug., 1837. WAVE XXIV. Depth 4 inches. 
Generated by Chamber D, from a height of 19 inches. Height= 20 inches. Vo- 
lume = 719-3 inches. 
Transits observed by reflection as formerly in the positive wave. 
Transits observed directly, and at successive transits in the negative wave. 
Observers 8 Patrick, y Hamil, 3 Donaldson—Transit, Russell. 
Statical level observed at {3 ee caer } Corrected depth = 3-85 inches. 
— 0:10 
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A B | Cc D E || A B Cc D E 
feet,|~sec.| 2 sec. line 3 in. |y/in.| 3’ in. | in. || feet. asec, \Bsec. y in.| 3 in, |7/in.|  in,| in, 
O-| ... | O-O [1-30] ... | 1-55)... |... |] 200] ... | 56-5) 0°70)0:502) 1-95) 0-602) ... 
40:| ... | 11-5 |1-00/1-20 | 1-25] 1-30 | 5-12/| 240] ... | 68-5] 0°50) 0-452) 0°75/0°55?) ... 
80:| ... | 22-0 10-90 1:15 | 1:15} 1:25 |5-05]| 280} ... | ... |0°45) ... | 0-70 
120-| ... | 33-0 |0-76|0°802) 1-95] 0-902] ... || 320) ... |92-0)0°30) ... | 055 
160-| ... | 44:5 |0°70|0°652| 1-95] 0°75 2) ... || 360] ... |... | eee | cee | aoe 
5th Aug., 1837. WAVE XXV. Depth 3 inches, 
Generated protrusion of svlid parallelopipedon C. Volume = 208-3 inches, 
Transits observed by reflection at the Central Station. 
Observers 6 Patrick, y Hamil, 3 Donaldson—Transit, Russell. 
Statical level observed at { 5 = et 0-30} Corrected statical depth = 3:08 inches, 
A B Cc D E A B Cc 
feet.|a sec.| 8 sec.| y in din.|7/in.|¥ in,| in. || feet. |@ sec.|6 sec.|y in.)d in. |7/ 
Osi)... 0-0 | 1:50,1-30) 1-45] 1-10} 4:35) 200: |... | 61-5 | 0°57/0-70) 0:52) 0-60) 3-64 
40°| .... | 11:5} 1°10,1-15) 1-05) 0-95] 4-08] 240° |... | 75-0 | 0-47\0-60) 0-42) 0:50) 3-54 
80:| ... | 23:5 | 0-90 1-13} 0-85} 0-93) 3-97] 280° |... | 89-0 |-0:40)0-53} 0:35) 0-43) 3°49 
120°} ... | 36°0}0°85| ... | 0°80) ... | 3-88]/320° | ... |... | 037) ... |032) ... [3:38 
160:| .:. | 48:5 | 0°70)0-70) 0-65) 0-50) 3-65] 360° |... {116-0 0:29) ... | 0°24) ... | 3°32 
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