Jljlrommical Obfervaiions. 173 
1774 
Clock, dif 
fers from 
mean 
time. 
Gains or 
lofes per 
diem . 
Mean 
of 
Therm, 
in obf. 
Mean 
of 
hygr. 
Obfervations. 
/ // 
F eb . 1 1 
42 
40 
12 
49 
50 
H 
+ ° 33-5 
+ 0 5 
46 
49 
r 5 
41 
4i 
16 
40 
37 
i 7 
+ 0 35-° 
+ 0.5 
4i 
3° 
18 
+ ° 35-5 
+ 0.5 
33 
My clock was bought three years fince at an auction, 
among the collection of clocks of fome gentleman, who 
was curious in that way in London. As foon as it ar- 
rived I bought it from the purchafer, a watch-maker : 
the name is hughes. It beats dead feconds,goes a month, 
and is finifhed both in fide and out with fo much pains 
and elegance, that the clock-makers inform me, it mult 
have coft forty pound. It had a common pendulum with 
a heavy bob. I got a wooden pendulum and a new 
crutch applied to it exactly according to Mr. ludlam’s 
directions, except that the fpring is longer. For four 
months after it was put up it went irregularly, upon 
which I fattened it to the wall with fcrew bolts and large 
wafhers. Since that time, May 1 7 7 2, it never loft more 
than 2" per diem , or gained more than 2 5, nor did it 
ever differ more than 1" in its daily rate on any two fuc- 
ceffive days, 
1 SIR, 
