Ernest Hemingway wrote his literature very specific. He never hesitated, and always came to a conclusion. With his short sentences, the reader always knew what was happening. In the short story, A days wait we meet a dad and Schatz a nine-year-old who got a fever.
The conversation in the text is not very long, usually, it has 2-5 words. There is no long description of a topic or subject. As an example, when describing the pills Schatz get he writes;
One was to bring down the fever, another a purgative, the third to overcome an acid condition.
There is no large description, no adjectives. His language is very direct. He picked this form of writing when he was a young journalist.