196 



Ozone and the Atmosphere. 



present signal service reports. It is to be hoped that the time 

 is not far distant, when the Government may think it im- 

 portant to do as much for public hygiene as for commerce and 

 agriculture. 



Although in the light of subsequent experiments, little 

 value I think can be attached to the following ozone observa- 

 tions, yet as illustrative of the variations in the amount of the 

 so-called ozonic reaction, and of the apparent lack of connec- 

 tion between it and other meteorological phenomena, the 

 accompanying table may be of interest : 



Register of Ozone Observations, 



Made at Upper Saranac Lake, Northern New York, altitude 

 1600 feet above the sea. Times of observation, 7 A. M. and 

 7 P. M. Season, Summer of 1877. Scale of 10. 









M 



WEATHER. 







OZONE, 



S 

 o 



H 



W 







EEMAEKS. 



DATE. 







• 









a 



a 







Q 











o 

 a 



g 



55 







o 









n 



<i 





< 



hi 









H 



m 



£ 



« 



o 





July 17.. 



5 



74= 



27 9 



s. 



Heavy. 





Considerable lightning. 



'• 18.. 



2 



70° 



28 



s. 









" 19.. 



2 



71° 



27.675 



NE~- SW 



Much. 





Great rain at night, and light'ug. 



" 20.. 





70° 



28 85 



s.w. 





Cirrus. 



Air very clear— rain at a distance. 





2.5 



73° 



27 9 



s.w. 







Cum. (1) 





" 21.. 



2 



62° 



28 



s.w. 







Cum. (6) 







1 



64° 



28 15 



s.w. 







Cum. (1) 



Very pleasant day. 



" 22.. 







67° 



28 275 



s.w. 







Cum. (1) 



Great cumulus clouds. 









72° 



53 275 



s w. 







Cum. (1) 



Little air — not bracing. 



" 23.. 



1 



68° 



28 35 



s.w. 







Nimb. (7) 











72° 



20 275 



s.w. 







Cum. (3) 





" 24.. 



1 

 1 



66° 



28.3 



s. 







Cirrus (5) 

 Cum. (1) 





" 25.. 







1 



68° 

 80° 



28.1 









Cum. (1) 

 Cum. (2) 





" 26.. 



1 



3 



71° 



28 



28 925 



s.w. 

 s.w, 







Stratus (3) 

 " (1) 





" 27.. 







72° 



28 125 



s.w. 







" (5) 



Heavy rain at night, and light- 





1 



80° 



28.15 



s.w. 



Bain. 



Nimb. (10) 



ning — in morning cool and re. 



" 28.. 



5 



72° 



28.1 



s.w. 





'• (10) 



freshing. 





1 





28.05 





Bain. 



Nimb. 





" 29- 



1 



72° 



28 





Kain. 



Cum. (2) 







1 



76° 



27.925 





Kain. 



Nimb. (10) 





•' 30.. 



3 







N. 





Cum. 







3 



78° 



28.075 



N. 





Cum. 



Very bright. 



'• 31.. 







64° 



28.2 



s.w 





Clear (o) 



Exhilarating. 





6 



72° 



28.25 



N. 







Clear (o) 





