Fi'Ki. Ori.s FOR Pump Trrtcatton 



417 



Petruk'um Company's Au-usta, Kansas, rcfincTy. The Rant^cr oil is 

 said to be j^ivini,^ fair service at Casa C.rande. Tlie California tops 

 (Curve No. 3) was troublesome to the users. Only a sample of the 

 Kansas oil was received. On account of the low volatility the offer 

 <ti this oil was rejected l)y the local dealer. Doubtless the oil would 

 be ver\ troidilesonie to farmers. Coiuparing- the curve of the Kansas 

 oil witli .\o. 3 cin-ve of Im.u'. 3, the 3.=^"" P.. California t;as oil is shown 

 to have nuich hii^her volatility than the ?>7'' Kansas oil. despite its 

 lower gravity. 



iMg. 6 shows the corresponding curves for a 2r-plus oil, a 24- 







10 



30 



4n :^i\ (10 



l'KRli;\T DISTII.l.KI) 



Fia. fi. Tho lioilinu nnices of "iT-plus O'l, :24-ij1us oil, .tikI ;i gas oil that was niaile >ip to 

 till a special ordt-r from Elfrida, Arizona. The last named oil was found quite impossible to 

 use in the internul-cunibustion engines in the vicinity of Elfrida. 



plus oil and a very low grade Texas gas oil. The first is in use at 

 some of the Tucson city pumping plants and the second is used in the 

 diesel enp-ines of the Tucson Gas. Electric Liyht and Power Co. The 

 third was found at bTfrida, a carload of it having been purchased 

 under a misapprehension : the cooperative company handling it was 

 practically out of the oil business, since none of their customers pur- 

 chased the oil but once. 



