Robert Thomas Hill

1858 – 1941

• Cuba and Port Rico with the other islands of the West Indies
• Cuba and Porto Rico
• Cuba and Porto Rico
• Cuba and Porto Rico, with the other islands of the West Indies
• Cuba and Porto Rico, with the other islands of the West Indies
• Notes on the forest conditions of Porto Rico
• Southern California geology and Los Angeles earthquakes
• Texas past and present
• The lower Cretaceous Gryphæas of the Texas region
• The mineral resources of Porto Rico
• A preliminary annotated check list of the Cretaceous invertebrate fossils of Texas
• Austin folio, Texas