440 Richardson and Mackenzie — Natural Naphtha from the 



Depth Kind of Bock 



134-154 feet Black slate and white limestone. 



166-176 " Green serpentine. 



1 76-1 94 " Limestone and slate. 



208-242 " Black slate. 



302 " Soapstone. 



347 " Green serpentine. 



425 u Green serpentine and soapstone. 



550 " Dark slate. 



565 " Hard black "shells" and soapstone. 



590 " Soapstone and green serpentine. 



670 " Slate and soapstone. 



680 " Green serpentine, soapstone. 



835 " Slate and serpentine. 



1109 " Hard black slate and serpentine. 



1187 " Black "shells." 

 1560 



The rock is strikingly similar to that described by the 

 Canadian driller. He found serpentine at 180 feet, in this well it 

 first occurs at 166 feet. Furthermore in another well (No. 2) 

 45 feet N.E., serpentine was found at 183 feet. Likewise the 

 black "shells" so often mentioned must be the black quartz 

 referred to. Well No. 2 was carried only to 700 feet. Two 

 gallons of naphtha were obtained at 580 feet but no more. The 

 well described above gave a little gas at 467 feet, half a pint 

 of naphtha at 700 feet, but no more till 1560 feet was reached. 



Much water is obtained with the naphtha, the relative propor- 

 tions being (average of 17 drawings). 



Oil 72*5^ by volume. 



Water 27*5$ 



The oil figure includes a substance which the driller spoke 

 of as "paraffin," and which will be referred to later as 

 "emulsion." 



The naphtha was of a very pale yellow color, and deposited 

 on long standing, a slight, light brown sediment. It had : 



Specific gravity, Westphal 15*6° 0*732 



N D 25° 1-4092 



It gave a fire test below 0°. 

 An Engler distillation gave : 



Table I. 





Engler Distillation^ 



Cuban Oil. 





Temperature 



*wt. 



Sp. gr. 15-6 C 



' Sp.gr. 20 o /20° 



N D 25° 



-75° 



3-5 







1-3900 



75°-100° 



18-9 



0-72 







1-4002 



100°-125° 



51-3 



0-739 



0-7372 



1-4094 



125°-150° 



18-4 



0-75 



0-7497 



1-4166 



150°-160° 



1-2 









1-4242 



Residue 



2-1 











1-4492 



