6o 



Public Parks. 



Table Showing Direction of Wind, Highest, Lowest, Mean, and 

 Range of Thermometer, with Rain, Snow, and Mortality, by 

 Months for Five Consecutive Years. — Continued. 



1863. Population — 138,186. 



1865. Population — 178,493. 



The above table w^as partially compiled from a very able and 

 interesting " Report on the Climate, Topography, and Epidemic 

 Diseases of Illinois," by Dr. R. C. Hamill, of this city. I regret 

 that the facts for 1863 and 1864 could not be obtained, this gap 

 necessarily detracting from the value of the table. From even these 

 imperfect data, it w^ill be seen that owing to the constant climatic 

 changes, great fluctuations of mortality occur ; one year heavy and 

 the next light, modified occasionally by epidemics. This fluctuation 

 is the more striking when the constant increase in population is 

 borne in mind, and they have been more marked since i860 than 

 before, particularly during the last five years. 



