482 ISHIZUKA ; ON THE SIGNIFICANCE OF THE NITRATES 



TOKYO-FU. POPULATION 1,342,000. 





Amount of Rain-fall mm. 



Absolute 

 number of 

 deaths from 



cholera. 



May 



June 



July 



August 



Sept. 



Oct. 



188? 



92 4 



IQQ.O 



qo.8 



1 1 1.9 



135-4 



163.5 







134.9 



177.5 



102. Q 



90.5 



193.2 



78.6 







77.2 



331.O 



182 6 



103.2 



72.0 



296.9 



112 





164. 1 



80.5 



48. 5 



87.1 



254.6 



190.9 



9679 



7 



147 4 



2l6.2 





97.6 



102.3 



223.5 





ft 



0 



144.4 



174.O 



I^.Q 



81.0 



1845 



211.7 





9 



195 3 



6S.5 



2^Q.Q 



96.2 | 187.3 



109.3 





90 



141.5 



1888 



1 20. 1 



106.0 214.3d) 



198.0 



33°7 



1 



347-5 



180.3 



130 1 



io5-3 



212.5 



191.7 





2 



267.9 



285.9 



109.1 



20.9 



288.9 



136.6 





3 



145-3 



95-5 



54-9 



95-3 



90.8 



1478 





4 



^4-3 



57-5 



61.6 



199.5 



144.9 



192.7 





5 





177.6 



299.8 



1293 



83.6(1) 





250O 



Mean. 



145. 1 



i7i-7 



109 0 



101.8 



166.4 



178.0 





TOKYO. 





Temperature (Average). c Cels. 



May 



June 



July 



August 



Sept. 



Oct. 



1883 



IS-2 



19.6 



23.5 



24.8 



216 



16.5 



4 



15.2 



19 5 



23-3 



23.8 



21.4 



15.6 



5 



IS-2 



20.3 



23-1 



25-5 



22.1 



16.1 



6 



16.4 



20.8 



25.0 



26.5 



23-3 



16.7 



7 



15.2 



203 



23.6 



25-3 



21. 1 



16.6 



8 



I6.0 



18.6 



24.5 



25.6 



21 0 



i5' 



9 



15-7 



20.9 



23-3 



25.8 



20.4 



14 6 



90 



I6.I 



22.0 



235 



25 4 



24 1 



16.0 



1 



18.2 



20.3 



24.9 



25-5 



24-3 



.6.5 



2 



16.6 



211 



25.7 



26.3 



23.0 



16.5 



3 



TS-8 



20.4 



25.2 



26.1 



22.4 



15.9 



4 



16.3 



23.6 



26.8 



27.0 



21.9 



15.4 



5 



17-5 



20.4 



22.1 



25-5 



22 9 



16.5 



i Mean 



16.8 



20.6 



24.2 



25.6 



22.2 



15.9 



Epidemic mo<t violent. 



