Word: sapping
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Rubber-plating. The colloidal particles in the sap of the rubber tree and in artificial rubber solutions are electrically charged. It was found possible to immerse pieces of metal in a bath containing these particles, charge the metal with a current of opposite sign to the charge in the rubber, and "rubber plate" objects just as silverware is electroplated. Deposits of rubber a fifth of an inch thick were obtained. Vulcanized, the deposits were found to adhere more tightly than ever. It was predicted that fabrics could be similarly treated and the rubber-garment business revolutionized...
...Rising Sap...
...poet's sap is low, his spirits drag...
...trust that a sufficient number of Senators who have not been seduced to political apostasy by the family sap bucket, or gorged into stupefaction by buckwheat cakes and Vermont maple syrup, or lulled to moral insensibility by the melody of waves breaking against the prow of the Mayflower- I trust there are enough left to vote against delivering the Department of Justice into the hands of the Sugar Trust...
...Potato Sap. By extracting a small amount of sap from a healthy potato plant and injecting it into a tobacco plant, the latter was found to become diseased. This disease from this plant could be transmitted to an unlimited number of other plants, showing that it was not merely a case of poisoning. -Dr. James Johnson, University of Wisconsin...