f 53 8 ] 
Turns of the 
Plate. 
83 In the river at anchor by the tide 
82 The fame repeated 
8 1 Sailing in the river 
79 In the river at anchor by the tide 
76 ^ailing in the river 
74 At fe i upon a wind 
7+ The fame repeated 
7 1 Sailing in the river . . . 
70 The fame . 
70 Before the wind at fea 
70 1 he fame .... 
70 The fame .... 
66 Before the wind in the river 
64 The fame . 
64 The fame ... 
64 The fame .... 
63 At fea upon a wind 
62 The fame . 
62 Sailing in the river 
I2 4A 
134 
98 
x 3f 
ll S 
64 
69 
7i 
66 
77 
& 
SS 
S3 
60 
Seconds 
of time 
during 
the run- 
ning out 
of 35 7 
feet of 
log-line 
43 
S3 
S 1 
AS 
It appears from thefe trials, made in different po- 
rtions of the veffel with regard to the wind, both in 
the river and at fea, as well by the tides at anchor, 
as in failing, that the turns of the plate, correfpond- 
ing with the fpace of 3 57 feet by the log, were from 
62 to 83 ; and the times, in which this fpace was run, 
were from 45 to 13 y feconds j the greater number of 
revolutions anfwering to the greater number of fe- 
conds, or flower movement of the veffel. Upon 
finding this considerable difagieement between the 
log and plate, when fwift and flow motions are com- 
pared,’ I did not fuppofe, that they proceeded from a 
retard- 
