388 Proceedings of the British Association 
ing a total continuance of the storm, in its ies of about thirty-six 
urs.* I renewed my observations»on the waves at ten A. M.— 
storm having been then subdued for several a and the height of the 
-wayes having perceptibly subsided. Soon | observed, when standing 
on the saloon-deck, that ten waves, in one case, came in succession, 
whieh all rdse above the apparent horizon,—consequently they must 
is have been more than twenty-three feet, probably the average might be 
s about pe sel six from-ridge to hollow. At this period I also found that 
i oceasio nally (that is, once in about four or five minutes,) three or four 
: waves in gaccession, as seen from the paddle-box, rose above the visible 
} —hene e they must, like those of the preceding day, have been 
elke feet ' waves. But one important difference should be noted—viz., 
_ that they were of no great extent on the ridge, pega. though more 
7 mere conical peaks, but a moderate elongation 
Another subject of consideration and investigation, on this occasion, | 
eg was the period of the regular waves overtaking the ship, and the de- | 
3 _ termination, proximately, of the actual width or intervals, and their ve- 
_- “Tocity.. 1. The ‘ship was then going nine knots only, the free action of 
»< the engines being greatly interfered with by the heavy sea rapeing and 
the lines of direétion of the waves and the ship’s course differed about 
224 degrees, the sea being two ‘points on the larboard quarter ae other. ee 
words, the true course of. the ship was east; the direction from, whe nee 
the sea came was W.N.W. 2. The period of regular waves in inci- 
, dental series, overtaking the ship, were observed as ; follows 
Wa Min. Sec. Mean. 
20 occupied . § 5." ¢ ; 165 
10 at rs 2 $8 55 - 15-5 
10 % yen 2 50 Big s 17 0 
10 “ : 2:46 8S . 16% 
8 ss 2 16 : ye ae 
‘Boesezel : avenge, , s eS aif 
obliquity of the direction of the waves to the course of 
the ship, i is Rend to be elongated about 45 feet, reducing the probable 
mean distance of the waves to five hundred and fifty-nine feet. Inde- 
1s comparison ‘frequently re-considered and re epeated, subseque: tly 
Fielded, in si accordance with the former, a total width, inthe lime 
__* The barome eee: at 8 P.M, was at 29°50; at 6 aM. of Sanday iat 
tn 30, 12 inches in ten hours, At 6 p.m. of the latter day it had risen 
