THE WEATHER, INFLUENZA, AND DISEASE. 



583 



of weather very closely, and has not been made much use of in the sequel, in the fear 

 that too much detail might obscure the main points of the communication. 



In the following short table the weeks of the seven years have been divided into 

 cyclonic and anticyclonic, and into those with a temperature which rose above 60° and 

 those in which the temperature remained below the point. 



Year. 



Cyclonic. 



Anticyclonic. 



+ 60°. 



-60°. 



1888-89, .... 



30 



22 



27 



25 



1889-90, . 



35 



17 



28 



24 



1890-91, .... 



26 



26 



31 



21 



1891-92, .... 



34 



18 



30 



22 



1892-93, .... 



22 



30 



30 



22 



1893-94, . 



37 



15 



32 



20 



1894-95, .... 

 Total, 

 Mean, 



29 



23 



27 



25 



213 



151 



205 



159 



30-4 



21-5 



29-2 



22 - 7 



During the seven years the type of weather was cyclonic in 30 '5 of the fifty -two 

 weeks on an average, and anticyclonic in 21*5. The temperature works out at very 

 nearly the same figures, 29*2 weeks above, and 227 below 60°. 



In Table IV. the relation between these meteorological factors and the weekly 

 admissions is shown. The total number for each year is given above, the weekly means 

 below, in each section. 



First the ordinary average for the fifty-two weeks is shown, and then the average 

 weekly admissions in relation to the type of weather and the temperature. 



Cases of respiratory disease were admitted in larger numbers when the temperature 

 remained below 60°, and when the type was cyclonic. The same holds good in the 

 admissions of patients suffering from pleurisy, when considered separately. On the 

 other hand, pneumonia was more prevalent in anticyclonic weather. 



Reference to Table III. shows that the proportion of the total number of respiratory 

 cases to the total number of admissions for all diseases was higher in three of the seven 

 years 1890-92-94. These three years were marked by a greater prevalence of cyclonic 

 weather than the other four, as reference to the table above will show. 



Patients suffering from disease of the heart were admitted in greater numbers when 

 the barometer was low and the temperature high. The same may be said of the 

 kidney cases, while rheumatic affections were more numerous in anticyclonic weather 

 and when the thermometer did not reach 60°. The figures for the nervous cases show 

 a slight increase during anticyclonic weather and when the temperature was above 60° ; 

 the same applies to the digestive system. Cases of chorea and appendicitis were 

 admitted in greater numbers when the barometric type was anticyclonic, while the 



