Explanation:
In "Letter by a Swiss-German Immigrant to Pennsylvania" America is the symbol for a free country. By this adjective "free" the author wants to explain how is America a place for living. Free means that everyone is welcome to come. The author creates a picture of America, where you can settle without asking everyone, where there is a wide landscape, spacious land "from Canada to the east of us to Carolina in the south and to the Spanish border in the west".
One of the most important detail is there is no payment for taxes to land, but in Europe, you must pay. Free country for author means there are no obligations for living there. He thinks that America is promised land.
This is a compound sentence, because there are two independent clauses here: 1. Stone bridges are strong + but 2. (strong bridges) are costly to build.
The conjunction 'but' connects two independent clauses, and a compound sentence contains at least two independent clauses, whereas a simple sentence has only one.
The death of Mrs. Ferrars, who overdosed on Veronal, a sleeping medication. Much of the town (including Dr. Sheppard’s gossip-loving sister, Caroline) believes <span>Mrs. Ferrars </span><span>poisoned her husband a year before. Caroline now speculates that Mrs. Ferrars has committed suicide with Veronal over the guilt. </span>