MAKTiN.] PROPERTIES OF ALASKA PETROLEUM. 59 
in all respects, and would resemble them in having a paraffiin base. It 
might not be of so high quality a- the ('out roller Bay petroleum, but 
nevertheless it would be a refining oil. 
The sample- were submitted to Penniman & Browne, of Balti- 
more, who return the following report on their test 3. 
Tests of sum iii'x of seepage petroleum from oil Bay <m<i Coin Bay. 
Oil Bay. Cold Bay. 
Specific gravity at GO F 0. 0557 (10.5 B) . _. 0. 05 17 ( 1 0. B) 
Distillation by Engler's method: 
Initial boiling point 230° C 225° C. 
Burning oil (distillation up to 800 C, 
under atmospheric pressure) 13.2% (29.5°B).... 13.3% (20.0 3) 
Lubricating oils (spindle oils) (120 mm. 
pressure, up to 3i)0 C.) 80.2'; (22.6°B)_.__ 28.3% (23.8"' B) 
Lubricating oils (120 mm. pressure, 300° 
C.-350°C.) 19.6$ (17.9°B)--. 18.3% (18° B) 
Paraffin oils (by destructive distillation 
under atmospheric pressure) 22.4% (20.4" B) 32.0% (20.4' B) 
Cokeandloss 5.6% . 8.1% 
Total sulphur 0.098% 0.116% 
The distillation of the lubricating oils under diminished pressure, corre- 
sponding to refinery practice, was carried on until siiii- of decomposition sel in. 
The resulting residue was unsuitable for making cylinder stock, and was there- 
fore distilled for paraffin oils. These paraffin oils contain a considerable quan- 
tity of solid paraffin. It was not practicable to determine the amount of the 
material with the small amount of oil at our disposal. 
The iodine absorption of the oils and distillates has been determined by 
Hanus's method (solution standing tour hours), and is here tabulated: 
( »il Bay. Cold Bay. 
Burning oil 17.8$ iodine 17.2% iodine 
Lubricating oil ._ 20.2'; iodine 27.2'; iodine 
Heavy lubricating oil 35.8$ iodine 35.2% iodine 
These iodine numbers upon the lubricating oils were obtained upon the sam- 
ples. For comparison, samples of similar oils were obtained from the Standard 
Oil Company, and the iodine numbers determined as follows: 
Light distilled lubricating oil ( spindle oil) 32% iodine 
Dark lubricating oil ( engine oil) ... ... 45.4% iodine 
The burning oils were tested in a small lamp and found to give a good flame. 
All the oil was consumed without incrusting the wick or corroding the burner. 
The sample Of crude oil from Cold Bay was distilled in such a way as to give 
the maximum yield of burning oil: under these conditions 52.2 per cent of fair 
quality burning oil was obtained. 
The oils are entirely similar : both have paraffin bases, and the products of dis- 
tillation are "sweet." We are informed thai these samples are "seepage oils." 
If a sufficient yield can be obtained by drilling, ;i very suitable oil for refinery 
purposes may be expected, containing a very much larger quantity of the more 
desirable lighter products. 
