On seeing hundreds of fossilized bamboo on the slopes of Zhejiang's Yandang Mountains, where the climate was too cold for bamboo, he hypothesized that the climate in that area had once been warmer.
看到浙江省雁蕩山一帶有竹子的化石數百莖，推斷已無竹子的雁蕩山，在太古時代要比當時溫暖。