Full Moon j and the Quarters, Mr. Henry Thilfyp hath framed 
a Table for the re&ification of this Error in the River of T hames ^ 
to be found in Number 54. p. 6$6 3 657. of the Phil. Trwf^ 
Actions. 
7. The water flows nor ebbs equal [faces in equal times ^ but 
its Velocity is ftrongeft at the firft both of the Flood and Ebb/ 
and fo gradually decreafeth until FullSea or Low water. This is 
obfervclin Spring-Tydesonly, as you may fee by the following 
Table, which I have made from my Obfervations of our Tydes 
here. To make them always fo near as to half inches^ is neither 
eafie, nor material, or ufefull. But this hath been likewife ob- 
ferved , that it hath flowed or ebbed at the firft of the Tyde 
one foot in 6. minutes, or that then the Tyde ran out a foot in 
6. minutes, or did rife fo much in height. - 
, The Ty de-Table by Hour-quarters \ 
— 1—7*1 , 
Hours 
& quart. Feet Inch 
1— 2-7^1 
2 2 — 6 
3— 2^6. 
. —2—6. 
I • — 2—6. 
2 2— 5-J 
3— 2—5. 
: —-2—5. 
1—2-3. 
Hours 
& quart. Feet. Inch. 
2 — -2—6. 
3 2 6. 
For the i 2 — 2—3. ^For the < 
flowing 1 3—2—3* Ebbing 
of 5 . 
hours. 
5... — 
2—3. 
1—2 —2. 
2 — 2— I. 
3—2 — 1. 
— 2—1. 
1 — 'i—g. 
2 — 1^-8. 
3— 1—8. 
-1—8. 
hours. 
2. 
3. 
—9 
■8— o 
9* 
^7 
3 — o 
45. circiter. 
45. feet circiter. 
Yyyy 2 
7 he 
