2^6 02ONE. 



cities which are generally deficient in ozone, yet might 

 have had an excess at that time. Of. this, for the lack of 

 observers there, I am unable to state. 



This disease seemed to be almost identical with influ- 

 enza in man, and in fine almost every person claimed to 

 have a touch of it about the first of December. (Ozone 

 was ten). This passed into a general condition of health 

 with a recurrence of whooping-cough in January. Ob- 

 servers in some sections, especially in Masachusetts, re- 

 ported a very small amount of ozone for January and 

 Februarv. We all know that variola was epidemic as 

 never before in and around Boston. This accords with 

 observations in Europe which show this disease peculiar- 

 ly sensitive to ozone (which here was three as an aver- 

 age). The last summer has been a remarkable time 

 of good health, not only in Lunenburgh but I understand 

 it quite generally so through this section. 



The last of July and the first half of August was 

 marked by several cases of cholera infantum, followed by 

 pneumonia and catarrhal diseases in October and Novem- 

 ber, with a remarkable increase of ozone the last of 

 November, about the same even as last year during the 

 horse epidemic, and I expected a reappearance, and I find 

 many horses were affected somewhat. 



Since the excess of ozone catarrhal affections have pve- 

 dominated. If these observations do not show any thing 

 definite they certainly show more in favor of our theories 

 than against them, and though in this utilitarian age some 

 may think ozone of little consequence, and ask of what 

 use it is to observe it ; yet I trust that most of the med- 

 ical fraternity will give it due consideration, and unite 

 your eftbrts with my own in marking the changes in the 

 type of your cases, and communicate to me your results. 

 If you will thus aid me, I will from time to time test for 



