﻿DC, B, 1 



Reiser: Plague in the Philippines 



31 



Table XIV. — Kinds of vessels on which rats were destroyed. 



(Calendar year 1907.) 



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



(First half of calendar year 1908.) 



Table XVI. — Kinds of vessels on which rats were destroyed. 

 (Calendar year 1908.) 



Vessels. 



Rats. 



Percent- 

 age of 1 

 vessels 

 having 

 rats. 



Kind. 



Total. 



Having 

 rats. 



Having 

 no rats. 



Total. 



Average 



in all 

 vessels. 



Average 



in vessels 



having 



rats. 



Steamers 



91 



25 



7 



77 



20 



2 



14 

 5 

 5 



717 

 73 

 41 



7.88 

 2.92 

 5.85 



9.31 



3.65 



20.50 



84.61 

 80.00 

 28.57 









123 



99 



24 8.^1 



6.75 



8.40 



80.50 











Month. 



Number of rats on — 



Number of vessels- 



Steam- 

 ers. 



Schoon- 

 ers. 



River 

 craft. 



All 

 vessels. 



Having 



rats. 



Having 

 no rata. 



1 

 Fumi- 

 gated. 



January 



188 



3 







191 



9 







9 



February _. 



118 



7 







125 



10 



1 



11 



March 



59 



2 







61 



5 







5 



April 



16 







2 



18 



2 



2 



4 



May-.- 



17 



2 







19 



4 



1 



5 



June 



Total 



91 



6 







97 



8 



1 



9 



489 



20 i 2 



1 



511 



38 



5 



43 



VcBBels. 



Rats. 



Percent- 

 age of 

 vessels 

 having 



rats. 



Kind. 



Total. 



Having 

 rats. 



Having 

 no rats. 



Total. 



Average 



in all 

 vessels. 



Average 



in vessels 



having 



rats. 



Steamers 



31 



11 



1 



27 

 10 



1 



4 

 1 



489 

 20 



15.78 

 1.82 

 2.00 



18.01 

 2.00 

 2.00 



87.10 



90.90 



100.00 



Schooners..- 



River craft 



' 2 







All vessels 



43 



38 



5 



511 11 88 1 13.45 



88.37 











