Hi. Unfortunately you didn't show the excerpt your question refers to. This makes it impossible for your question to be answered. However, when searching for your question on the internet, I could find another question exactly like yours, which had the text shown in the attached figure. In that case, I hope the answer below will help you.

A detail of the text that characterizes the narrator's uncle well are the lines "As I said, my uncle, Professor Hardwigg, was a very learned man; and I now add a most kind relative."

That's because these lines summarize two very striking points of the narrator's uncle's personality, which allows the reader to have a strong view of this man and even be able to understand the way he behaves throughout the story. In addition, the narrator shows evidence that the uncle has, in fact, these characteristics, showing how the uncle is a cultured and scholarly man, who values science and studies, especially in relation to mineralogy, in addition to showing that the uncle valued family ties and was very affectionate with his relatives.

Before finalizing your answer, it is important that you know that "Journey to the center of the earth" is a book written by Jules Verne, which shows the story of how Axel, the narrator, and his uncle discover an ancient document that guide them to a series of underground caves, where they live many adventures.

You can find more information in the following related questions:

brainly.com/question/16706792?referrer=searchResults