6 54 



POPULAR SCIENCE MONTHLY. 



each day during the fourteen years on which a crime of either class 

 occurred. When several took place upon the same day the fact was 

 taken into consideration. From the sheets thus filled out, the 

 curves on the accompanying charts were plotted by computing the 



Barometer, Inches 



Jan. Feb. Mar. Apr. May June July Aug. Sept. Oct. Nov. De 



M. 



10. 



O.L 



Wind 

 Total Slovement 



Murders 



Expectancy 



per cent of crimes of each class committed under the definite me- 

 teorological condition indicated. 



The curves marked " normal " were constructed by tabulating 

 in a similar manner the conditions for every day in a sufficient num- 

 ber of days to secure a fair average. Five years were so tabulated 

 for Figs. 2, 3, 4, and 5, and the records for nineteen years used 

 in Figs. 1 and 6. 



The whole number of suicides recorded is two hundred and sixty; 



