io6 



MALARIA 



were found March u and 12 in the swampy grass 

 areas around Penryn and Loomis. 



The following data show the distribution for Penryn 

 from this time on : — 



Data on Places where Anopheles Wrigglers were Found 



Date 



Callison (lower end pasture) 



Griffith 



Snelling 



Douglas (pasture) . . . 



Callison 



Griswold 



Owens 



Callison 



Turner (and adjoining) 



Gibson 



Snelling 



Gibson (swamp to north) . 

 Producers (swamp near) 

 Gibson (swamp near) . 

 Secret Ravine .... 

 Gibson (pasture) 



Magnison 



Antelope Creek .... 

 Snelling (Japanese house) . 

 Snelling (Japanese house) . 



Hale 



Gibson (peach orchard) 

 Snelling (pasture). . . . 

 Near R.R. tracks (leaky 



pipe) 



Butler (pasture) . . . . 



Camp No. 14 



Camp No. 12 



Red Ravine 



Struble 



Graff (back of saloon) . . 

 Old China Slough . . . 

 Producers (drain under 



warehouse) . . . . 

 Owens 



March 14 

 17 

 17 

 19 

 April 12 

 27 

 27 

 28 

 May 4 



3i 



June 17 



23 



July 16 



16 



August 1 



5 (see report) 

 12 



17 

 19 



22 

 22 



23 



25 , . N 



29 (much malaria) 



September 2 



5 



25 



24 



30 



30 

 October 1 



Larvae 



Larvae 



Larvae 



Larvae 



Larvae 



Larvae 



Larvae 



Larvae 



Larvae 



Larvae 



Larvae 



Larvae 



Larvae 



Larvae 



Larvae 



Larvae 



Larvae 



Larvae 



Adults 



Adults 



Larvae 



Larvae 



Larvae 



Larvae 

 Larvae 

 Larvae 

 Larvae 

 Larvae 

 Larvae 

 Larvae 

 Larvae 



Larvae 

 Larvae 



