ON WAVES. 493 
llth Aug., 1837. WAVE XCIII. Trapezoidal Channel (M). 
Generated by addition of solid parallelopipedon C. 
Times observed directly at y and 3, single transits. 
Time, a Russell, Index, y Hamil, Index, 3} Donaldson. 
Statical level observed at 3 S a wen \ Corrected depth = 601 inches. 
i aE SO ee eee 
A B Cc D E|| A B Cc D E 
feet. | a sec.|@ sec.|y in.|3 in.|>/in.|2’in.| in, || feet. | # sec.|@ sec.|y in.|d in.|4/in.|¥ in.) in. 
0-0) ... | OO | ... |... | wee | wee | eee |] 757] 2. | 20°5) 1-25) ... | 1:32) ... | 7:33 
PEG ieee | 40 |... | ee] Beef eee | vee ETS Pes Record! lucety (eect lia Eero 
35:7] ... | 9°0 | 1:5] ...| 1:57) ... | 7:58)/185-7 
12th Aug., 1837. WAVE XCIV—CIII. Cuneiform Channel (N). 
Heights observed at A= 0°, B = 8°5 feet, C = 12°75 feet, and D = 17 feet. 
Breadth of Channel at A = 12 in., B = 6in., C = 3° in., D = 0 breadth. 
Statical level observed at { ¥ x a, i? } Corrected depth = 3:78 inches. 
Wave. | Height A.| Height B.| Height C.| Breaking Point. | Time.| Velocity. 
inches. ‘inches. inches, feet. sec, feet. 
XCIV. 1:5 2-5 3°5 D. — 38 4-0 4:25 
XCV. 2:0 2-4 33 D. — 0:0 4-0 4:25 
XCVI. 2-0 2°4 3°6 D. — 2:0 4-0 4:25 
XCVII. 1:25 20 2-5 D. — 00 4:0 4:25 
XCVIII. wae 2°45 31 D. — 0-4 4:0 4-25 
XCIX. 15 2°35 3°25 D. — ea 4:0 4:25 
3 f 2 D. — 2 : 
Cc. 2:0 2°55 33 Ht. = 3°6 in 40 4:25 
CI. 1:0 13 POM WHE ae ae! 
CII. 0°25 0-3 Oe WAI: re seces 5:0 3-4 
CIII. awe 0-5 OGarat ll > i kkese aa mas 
12th Aug., 1837. WAVE CIV—CVI. ~~ Cuneiform Channel (N). 
Heights observed at A = 0-, B= 8-5 feet, C = 12°75 feet, and D = 17 feet. 
Breadth of Channel at A = 12in., B = 6 in., C = 3: in., D = 0: breadth. 
x z 4. 0-075 t Corrected depth = 2:01 inches, 
Statical level observed at 
Height A.| Height B.| Height C.| Breaking Point. | Time.| Velocity. 
i | | | | | 
[————————___. 
inches. inches. inches, sec. feet. 
CIV. 0-25 Soe 05 2 inches high. 65 2-61 
CV. 0:20 oe8 0°35 2 inches high. 65 2-61 
CVI. 0:50 “a3 1:0 2 inches high. 6:25 2:64 
