On the ["Using the loc.gov API with the Chronicling America Historic Newspapers Collection" page](https://libraryofcongress.github.io/data-exploration/loc.gov%20JSON%20API/Chronicling_America/README.html), the structure of an API Query URL is given as follows: ``` https://www.loc.gov/collections/chronicling-america/?{queryparameters}&{queryparameters}?fo=json ``` This is incorrect because of the second `?` in the query parameters directly preceding the `fo=json`, and it should instead be a `&`.