SEA 
*29 
ter about iweetned Tea water 
therewith 
from fea water by wood afhes 
Watfo\ 
lip 
gravil 
fea water begins to freeze - A 
Sea. (lnftruments ufed at) Patterns of the tables pro- 
pofed to be made for observing, the tides 
mifed in the foregoing transactions A 
With other enquiries touching the fea 
in the above obfervarions 
An account of 
a machine for meafuring 
tainty - Hales and Oejag 
A propofol of a method for finding the Jongi- 
by a continued feries of accurate ob- 
therein, 
fervations of the moon 
A del 
without feeing the horizon 
ing of a mercurial level, for taking the co-a ! - 
quently is obfeured 
Tranf. 
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