1853.] Geometrical Measurement of Barometric Waves. 



83 



Monday 5th May, 1851. 





Barometer. 



Wind. 



Time. 













Height. 



Thermometer. 



Azimuth. 



Force. 



A. M. 











6. 51 



29.365 





247 





7. 1 



.360 





247 



15.4 



11 



.380 





247 





21 



.380 





S. W. by W. 236 





31 



.372 





236 





41 



.392 



78.0 



236 





51 



.394 





S. W. 225 





8. 1 



.398 





225 



9.8 



11 



.426 





225 





21 



.430 





225 





31 



.424 





S. W. by S. 214 





41 



.432 



77.2 



214 





51 



.452 





214 





9. 1 



.466 





S. W. by S. 214 



6.6 



11 



.481 





214 





21 



.482 





214 





31 



.476 





214 





41 



.493 



76.5 



214 





51 



.498 





214 





10. 1 



.502 





214 



5.8 



11 



.498 





214 





21 



.502 





214 





31 



.508 





214 





41 



.518 



77.5 



214 





51 



.520 





214 





11. 1 



.526 





214 



4.4 



11 



.532 





214 





21 



.542 





214 





31 



.547 





214 





41 



.540 



78.6 



214 





51 



.540 





214 





P. M. 











0. 1 



.554 





214 



3.2 



11 



.554 





214 





21 



.556 





214 





31 



.558 





S. S. W. 202 





41 



.560 



78.5 



202 





51 



.558 





202 





1. 1 



.552 





202 



2.4 



11 



.550 





202 





21 



.554 





202 





31 



.554 





202 





M 2 



