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THE POPULAR SCIENCE MONTHLY
| Flows (melting point N. Y. T. L. method) | 151° | F. |
| Penetration at 77° F., 5 sec, 100 grams, No. 2 needle | 3 | .0 mm. |
| Loss 20 grams 325° F., 7 hours, 214 dish | 2 | .9 per cent. |
| Character of residue | Smooth | |
| Penetration at 77° F., 5 sec, 100 grams, No. 2 needle | 1 | .2 mm. |
| Loss 20 grams 400° F., 7 hours, 2414 dish | 7 | .2 per cent. |
| Character of residue | Smooth | |
| Penetration at 77° F., 5 sec, 100 grams, No. 2 needle | .4 mm. | |
| Loss 50 grams at 325° F., 24 hours, 278 14 dish | 3 | .9 per cent. |
| Character of residue | Smooth | |
| Penetration at 77° F., 5 sec, 100 grams, No. 2 needle | .5 mm. | |
| Bitumen soluble in CS2 air temperature (70° F.) | 94 | .6 per cent. |
| Difference | 1 | .5 per cent. |
| Inorganic or mineral matter | 3 | .9 per cent. |
| 100 | per cent. | |
| Bitumen soluble 88° naphtha, air temperature (70° F.) | 67 | 3 per cent. |
| This is per cent, of total bitumen | 71 | .2 per cent. |
| Carbenes—per cent. bit. insol. CCl4 air temp. (70° F.) | None | |
| Bitumen yields on ignition: Residual coke | 12 | .9 per cent. |
| Sulphur | 5 | .5 per cent. |
It appears from the above that the Bermudez asphalt is differentiated completely from that found in the Trinidad pitch lake, by the absence of
Photo, W. H. Rau, Philadelphia.
Railway Terminal at Guanaco, Pier in Distance.
