ON WAVES. 49] 
11th Aug., 1837. WAVE LXXXV. Trapezoidal Channel (L). 
Generated by protrusion of solid parallelopipedon C. 
Times observed directly at Stations + and 9, single transits. 
Time, « Russell, Index, y Hamil, Index, 3 Donaldson. 
Statical level observed at 3 x if O10; Corrected depth = 5-00 inches. 
eee | Coe. Dee pa a fol BP eet wp) | E 
feet. | a sec./@ sec,|4 in.|d in.|9/in,|0’in.| in. || feet. | @ sec.|@ sec.|y in.|d in.|7/in.|’in.| in. 
0-0) ... 0-0) 2°50} ... | 2°55] ... | 7°55]/ 75-7) ... | 24-5) 0°30) ... | 0-35) ... | 5°35 
146] ... 4-0} ... |0°80) ... |0°80) 5°80) 95-7] ... | 29-5) ... [0-22] ... |0-22) 5-22 
35-7} ... | 10:5/0°70) ... | 0°75) ... | 5°75]/115-7 |... | 37-0) 0-10) ...) O15] 2. | 5°15 
o0F| 2. | 17-0) ... |O-52) 6. (0°52) S5°5QN1S5-7 | nf vee | wee | cee cee | cee | eee 
llth Aug., 1837. WAVE LXXXVI. Trapezoidal Channel (L). 
Generated by protrusion of solid parallelopipedon C. 
Times observed directly at Stations y and 3, single transits. 
Time, « Russell, Index, 7 Hamil, Index, 3 Donaldson. 
Statical level observed at { 5 fs a O10 ¢ Corrected depth = 5-00 inches, 
feet. | a sec.|@ sec.|y in.|d in.|/7/in.|0’in.| in, || feet. | @ sec.|@ sec.|y in.|3 in. yin. in. in. 
00) ... 0:0) 2-+) .../ 2°) ... | 7°00) 55:7]... | 17-0) ... [0-47] ... 10°47] 5-47 
14-6] ... 4-0] ... [0:90] ... |0°90) 5:90) 75:7) ... | 25:5) 0. | ..] cee | eee | ee 
BOF |... | LOS) 0. | coe] one | ee | eee |] 957] oo. | B75] ... (0-25) ... 10°25) 5-25 
11th Aug., 1837. WAVE LXXXVII. Trapezoidal Channel (L). 
Generated by protrusion of solid parallelopipedon C. 
Times observed directly at Stations y and 3, single transits. 
Time, a Russell, Index, y Hamil, Index, } Donaldson. 
Statical levei observed at{ 3 at hae } Corrected depth = 5:00 inches. 
A B Cc D E|| A B Cc D E 
feet. | « sec.|6 sec.|y in.|d in./>/in.|¥’ in.) in. || feet. | « sec,|B sec.|y in.|) in.|7/in,|in.| in. 
0-0 0-0}... | wee] cee | cee] eee |] 557] «2. | 17-0]... [0°52) ... (0-52) 5-52 
14-6)... 4-5] ... 0°85] ... [0°85] 5°85] 75°7| ... | 26-0) ... |...) 2. | | ee 
B57 | 2. | 110)... | wee] cee] cee | ee |] 957]... | 88-0)... 10-25] ... 10-25) 5-25 
11th Aug,, 1837. WAVE LXXXVIII. Trapezoidal Channel (L). 
4 
| 
Generated by protrusion of solid parallelopipedon C. 
Times observed directly at Stations y and 9, single transits. 
Time, « Russell, Index, y Hamil, Index, } Donaldson. 
Statical level observed at{ 3 Taga } Corrected depth = 5-00 inches. 
= +010 
A B Cc D | El a B | c Dee 
feet. | @ sec.| sec.|y in.|3 in.|/7/in.|3in.| in. || feet. | a sec,|a we in.|d in.|y/in.|8/ in.| in, 
OO}... | OO | wee | wee | one f vee | aoe |] SH-7] 0. | 17-0)... (0°52)... 10°52)... 
WEG)... | 4:25) ... 10°35) ... O85) va 757 |... ||) 260). 
Bee HOTS) ca | wefan | os | oe |] OF] 5. | BPS]. 0-25| ... 10-25] ... 
LS 
