174
THE POPULAR SCIENCE MONTHLY
{| style="margin:0 auto 0 auto;font-size:85%;line-height:120%;text-align:left;border-collapse:collapse;background-color:transparent;"
|- |width=405|Flows (melting point N. Y. T. L. method) |style="text-align:right;"|151° |F. |- |Penetration at 77° F., 5 sec, 100 grams, No. 2 needle |style="text-align:right;"|3 |.0 mm. |- |colspan=3| |- |Loss 20 grams 325° F., 7 hours, 214 dish |style="text-align:right;"|2 |.9 per cent. |- |Character of residue |Smooth | |- |Penetration at 77° F., 5 sec, 100 grams, No. 2 needle |style="text-align:right;"|1 |.2 mm. |- |colspan=3| |- |Loss 20 grams 400° F., 7 hours, 2414 dish |style="text-align:right;"|7 |.2 per cent. |- |Character of residue |Smooth | |- |Penetration at 77° F., 5 sec, 100 grams, No. 2 needle | |.4 mm. |- |colspan=3| |- |Loss 50 grams at 325° F., 24 hours, 278 14 dish |style="text-align:right;"|3 |.9 per cent. |- |Character of residue |Smooth | |- |Penetration at 77° F., 5 sec, 100 grams, No. 2 needle | |.5 mm. |- |colspan=3| |- |Bitumen soluble in CS2 air temperature (70° F.) |style="text-align:right;"|94 |.6 per cent. |- |Difference |style="text-align:right;"|1 |.5 per cent. |- |Inorganic or mineral matter |style="text-align:right;"|3 |.9 per cent. |- | |style="text-align:right;"|100 |per cent. |- |colspan=3| |- |Bitumen soluble 88° naphtha, air temperature (70° F.) |style="text-align:right;"|67 |3 per cent. |- |This is per cent, of total bitumen |style="text-align:right;"|71 |.2 per cent. |- |Carbenes—per cent. bit. insol. CCl4 air temp. (70° F.) |None | |- |Bitumen yields on ignition: Residual coke |style="text-align:right;"|12 |.9 per cent. |- |Sulphur |style="text-align:right;"|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

Railway Terminal at Guanaco, Pier in Distance.