﻿EX, B, 1 



Heiser: Plague in the Philippines 



35 



Table XXV. — Rats destroyed on vessels by sulphur fumigation. 



(Fiscal year 1913.) 



Month. 



Found in — 



Steamers. 



Schooners. 



River craft. 



All vessels. 



Mice. 



Rats. 



Rats 

 and 

 mice. 



Mice. 



Rats. 



Rats 

 and 

 mice. 



Mice. 



Rats. 



Rats 

 and 

 mice. 



Mice. 



Rats. 



Rats and 

 mice. 



July 



71 



35 



39 



78 



149 



21 



1 



6 



19 



14 



26 



21 



114 



84 



154 



145 



82 



270 



12 



44 



25 



150 



178 



140 



185 



119 



193 



223 



231 



291 



13 



60 



44 



164 



204 



161 



11 

 



16 

 4 



12 

 

 3 

 

 3 

 

 

 2 



23 







21 



16 



12 



1 







1 



1 



5 



12 



3 



34 







37 



20 



24 



1 



3 



1 



4 



5 



12 

 5 















37 



30 



12 



1 



1 















7 



6 

 2 



12 



89 

 103 



67 

 6 

 

 



20 

 3 

 



6 

 2 



12 

 126 

 133 



79 

 7 

 1 

 



20 

 3 

 7 



82 



35 



55 



119 



191 



33 



5 



7 



22 



14 



26 



30 



143 



87 



189 



250 



197 



338 



18 



45 



26 



175 



193 



143 



225 



•121 



b242 



369 



388 



371 



23 



52 



48 



189 



219 



173 



August 



September 



October _ 



November 



December 



January..- 



February 



April 





June 



Total 



480 



1,398 



1.878 



51 



95 



146 



88 



308 



396 



619 



1,804 



2,423 



* Plus 1 found on wharf. 



•> Plus 2 found on wharf. 



Table XXVI. — Kinds of vessels on which rats and mice were destroyed. 



(Fiscal year 1918.) 



Kind of vessel. 



Number of 

 vessels. 



Number of — 



Average number 

 in all vessels. 



Average number 



in vessels having 



rats. 



Percent- 

 age of 



vessels 



having 



rats. 



Total. 



Hav- 

 ing 

 rats. 



Hav- 

 ing no 

 rats. 



Mice. 



Rats. 



Rats 

 and 

 mice. 



Mice. 



Rats. 



Rats 

 and 

 mice. 



;Mice. 



Rats. 



Rats 

 and 

 mice. 



Steamers 



Schooners... 

 River craft . 



All vessels. 



225 



63 



320 



173 



29 



129 



62 

 24 



191 



480 

 51 



88 



1,398 



95 



308 



1,878 

 146 

 396 



2.13 

 0.96 

 0.27 



6.21 

 1.79 

 0.96 



8.34 

 2.75 

 1.23 



2.76 

 1.76 

 0.68 



8.08 

 3.27 

 2.39 



10.83 

 5.03 

 3.07* 



76.89 

 54.72 

 40.30 



598 



831 



267 



619 



1,804 



2.423 



1.03 



3.02 



4.05 



1.93 



6.62 



7.55 



53.68 



Table XXVII. — Rats destroyed on vessels by sulphur fum,igation. 



(January 1, 1903, to June 30, 1913.) 



Kind of vessel. 



Number of vessels. 



Rate. 



Percent- 

 age of 

 vessels 

 having 

 rats. 



Total. 



Having 

 rats. 



Having 

 no rats. 



Total. 



Average 

 number 

 in all ves- 

 sels. 



Average 



number 



in vessels 



having 



rats. 



Steamers 



1,447 

 617 

 467 



1,092 

 373 

 231 



355 

 244 

 236 



14,632 



1,916 



761 



10.11 

 3.10 

 1.63 



13.40 

 5.14 

 3.30 



75.47 

 60.45 

 49.46 



Schooners 



River craft 



All vessels . 



2.631 



1,696 



836 



» 17, 312 



6.84 



10.80 



67.00 





■ Three found on wharf. 



