Since the beginning of rubber discovery, Westerners have continued to develop its use. Germany's Frederick made a pair of riding boots with rubber dissolved in ether. Rubber can erase pencil marks, so people make it into rubber. But rubber has a fatal flaw, which is too sensitive to temperature. When the temperature is slightly higher, it will become soft and sticky, and it will smell Malum; Cum temperatus est humilis, erit fragile et durum {{IV}} Hoc defectus facit Flexilis products non foro {{V}}
In aestate de MDCCCXXXIV, Goodyear visited New York scriptor Indian Flexilis Company {{I}} Qui didicit quod huiusmodi Flexilis lugens totius Rubber industria, sed in has seriem {}}}}}
Boodyear est nec chemist nec physicus . in fabrica, qui operatur sicut artifex, constanter sponte variis materiae ad test cum rubber {I}} in MDCCCXXXIX, goodyear est in III}} in January, {V}}} Flexilis, plumbum et sulphur et calefacit et obtinuit et corium, sicut substantia {{VII}} Hoc materiam non dissolvit ad altiorem temperaturis, quam vulgo, quod paratus non decommanization {}}} {et boulyear