When Agassiz began to build a summer camp on the island, David Starr Jordan was still reading newspapers in Gailsburg, Illinois, half of the United States. He eventually found a job teaching science in a Christian school called Lombardy College. But in fact, he had a miserable life: not only was he in a foreign country, but his thoughts were also out of place. Colleagues criticized him for spreading God's blasphemous ice theory, and what's more, he let students come into contact with experimental equipment, which is a "waste of experimental materials". Illinois is very cold, but here, the earth is still flat. David missed the valley full of wild flowers in his hometown very much. Fortunately, on a dark early spring morning, he read an advertisement from the newspaper - "Introduction to Natural History by the Sea" taught by Agassiz himself.