488 SEVENTH REPORT—1837. 
9th Aug., 1837. WAVE LXXV. Triangular Channel (H). 
Generated by protrusion of solid parallelopipedon C. 
Times observed directly at Station y, double transits. 
Time, @ Patrick, Index, y Hamil, rari Russell. 
Statical level observed at 15 oF 4 05 05 f Corrected depth = 7:04 inches. 
feet. | « sec. Is sec.|y in./d in.|7in.|d’in.| in. || feet. | « sec.|6 sec.|y in.|d in.|9/in.|d/in,| in. 
OOP aes 0-0 aes cooi| seer || LO0°D!, 5.5 | 49°01 O15) 23.) OM... eee 
BOD)|, won LAD 0-60) ... | 0-62) ... 7°66||195°5) ... | 62°0) 0°07) ... | 0°09] ... | 7°13 
755] ... | 24:0) 0-45] ...| 0°47) ... | 7-51] 2385-5)... | 75-5] 0°05) ... | 0°07) ... | 7-11 
115-5] ... | 36:5} 0-30) ... | 0-32) ... | 7°36|| 275-5) ... | 88:5) 0-00) ... | 0-00} ... | 7-04 
Remark,—In this series of experiments it was observed that the wave was long and 
low on the deep side, and comparatively sharp and short on the shallow side, so that 
the outline of the wave was formed of convergent lines. The wave did not always 
break on the shallow side, but broke on that side much earlier than on the other side. 
11th Aug., 1837. WAVE LXXVIL. Triangular Channel (K). 
Generated by protrusion of solid parallelopipedon C. 
Times observed directly at Stations y and 3, single transits. 
Time, a Russell, Index, y Hamil, Index, 3 Donaldson. 
Statical level observed at {es 7 af O10 Corrected depth = 4:04 inches. 
A B 10 
feet. | a sec.|6 sec.|y in.|) in.!9/in.|8/in.| in. || feet. | « sec.|@ sec./y in.|3 in.|9/in.|3’in.| in. 
0-0 | OO} ... | 1:0] ... | 0°95] ... | 4°99]| 55-7) 21-5) ... | ... (0°30) ... 10°20) 4-24 
1462) 5-0) ... | ... | O-7| ... 0°60) 4-64|| 75-7 | 29°5| ... | 0:20] ... | 0°15) ... | 4:19 
35:7 | 13-0) ... | OG} ... | 0°55] ... | 4:39)| 95-7 oa s1a'fivsete-|{usee (eet ene ieen 
llth Aug., 1837. WAVE LXXVII. Triangular Channel (K). 
Generated by protrusion of solid parallelopipedon C. 
Times observed directly at Stations y and 3, single transits. 
Time, a Russell, Index, y Hamil, Index, 3 Donaldson. 
Statical level observed at | 3 = 5 O10f Corrected depth = 4-04 inches. 
feet. | « sec.| sec.|y in, |) in.|y’in. ly¥in.| in. || feet. | « sec. B sec,|y in.]3 in.}9/in.|2’in.| in. 
00) 0-0 | ... | Us}... | Ue]... | we. |] 55°7 | 21-5] ... |... [O'S0} ... [0+ 2)4-24 
14-6] 5-25| ... |... [0-65] ... (0°55| 4-591] 75-7 A PEAS easier liters 
35:7 |13-0 | ... | 0-43} ... | 0-38} ... 4-42) 95-7 
