From
fusel oil by the use of chlorine isoprene can be prepared, so the chain
was complete.
But meanwhile the Germans had been making equal progress. In 1905 Prof.
Karl Harries, of Berlin, found out the name of the caoutchouc molecule.
This discovery was to the chemists what the architect's plan of a house
is to the builder. They knew then what they were trying to construct
and could go about their task intelligently.
Mark Twain said that he could understand something about how astronomers
could measure the distance of the planets, calculate their weights and
so forth, but he never could see how they could find out their names
even with the largest telescopes. This is a joke in astronomy but it
is not in chemistry. For when the chemist finds out the structure
of a compound he gives it a name which means that. The stuff came
to be called "caoutchouc," because that was the way the Spaniards
of Columbus's time caught the Indian word "cahuchu." When
Dr. Priestley called it "India rubber" he told merely where it
came from and what it was good for.
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