J. Harlan Johnson

1892

• A résumé of the Paleozoic stratigraphy of Colorado
• Algae as rock builders
• An introduction to the study of organic limestones
• An introduction to the study of rock building algae and algal limestones
• Bibliography of Colorado maps pub. by the state and federal governments
• Bibliography of fossil algae
• Bibliography of geophysical principles, apparatus and methods applied to prospecting
• Bibliography of the geology of north central Colorado
• Coralline algae from the Eocene Atascadero limestone
• Eocene algae from Ishigaki-shima, Ryūkyū-rettō
• Eocene coralline algae from the Maganos formation, California
• Fossil algae from Guatemala