
TER SQUARE, LONDON, BY W. 
y 
R. BIRT. 

— 





























d 
= t —=—s 
ie: a. 
a ere = 4 
- 
a ~~ eee ee 
ae 
ae 
| 
This Curve ts continued at Fig4. 
Ps 8 D | 
— = =| - | 
re jE | 
: This Gurve ws continued at Fig. 2. 
wy 
o 

This Plate exhibits the Barometrie Undulations tron September 
to Novembar 471992. consisting oF two larger, exh having 



avinterval of IT days, figures 1S: 2; and four salen, Figures 
dard 4, 
JB. The Mtitudes of the Barometer are laid down as observed 


without the application of any correction whatever. 
This curve is continued on Plate 2— Londow. : 
= n jus A "es je ” 2 ee 


