6 ] 
supplyt/^eteins'drawn ma^T" ^ the area froi " "Hich «* 
attached as at Port Dickson mJn A ndtlve houses with cess pits 
drain, *. ““ E “« 
practically no case is there a nroner cnffi.V , KWala Lum P ur > a nd ir 
occasional or habitual contamination*^ the ^fUT 6 ^ ‘° PreVen ' 
precautions * ° f ff n the ’ case ’ Wlth efficient 
than stream water. To pr“”ons ±Th WeM is proba M>’ better 
crowded population and the ground is soaked wkhTn* wbe . re , there Is a 
certain amount of filtraHrm -r oak ed ^ lta human discharges. A 
and further purification takes nlar^h Catl JJ n ot the . water no doubt occurs 
where obvious sourcesof but ! <~ d ‘ha, 
water as determined both by bacteriological and °u CaS ! 0n , al P 11 "^' of ‘he 
justification of its continued c ? d chemical methods is no 
source of contaminationremoved " Sh ° UM be C '° Sed or th e 
instances “ a ™“d and of these in only 4 
standard proposed by Dr. Finlayson and mysfelf.'" aCCOldance wlth ‘below 
and usually in 4rc^ofthf wafePIndTndl ? rganisms were Present in 2 cc. 
m 5 The° nu °b m T tHan ° ne tbird ° f ‘ l 'e wamrsIxaS" 5 
■to to 1, 8 oo,''I)uT350°to'qoo'^we're 'the T" S InStitUte Varied from 
found in one instance and in t ommon limits. B. pyocyaneus was 
communis. No other natho<mnir ° orgamsms ^distinguishable from B. colt 
but during an S offit "’ ere fr ° m tbese "ate*. 
with Koch’s Comma bacillus were found Tldnl d 5 ap P arentl y id “ n ‘ical 
formed in Peptone water and limipfan*- * ^ d , and nitntes were rapidly 
corresponding to that of that ^hnrill 100 t< atlne to °^ P^ ace at a rate 
connection that the clos.ng o/ the^uXL™^ in this 
the disappearance of cholera from that- ' tv J udu ? a ° Was ^°dowed by 
"» rr* **■' 
are p^nt^d S a^^M“ t n°umte CO, f m0ner n °, n -P atho g enic organisms 
been isolated but there is no m id ^ o, apparently new organisms have 
practical importance ' that are of an y Pathogenic or 
Town Supplies. 
as those described^'^ fr ° m SUch stleamE 
settlements are allowed tobe ^ade^tW and 
capacity ^2^fio ooo^al'" lmpoundin S reservoirs, that at Ampang with a 
elevation of 3^ eet and with'o °w ^ ° f Kwala Lumpur * at an 
service reservoir at r c.A , 7 “ hou ‘ filtration conveyed in pipes to a 
distributed as required 74 ’ °° ° nS m ° T near the town from which it is 
