In the case of Yazoo and Mississippi Valley Railroad Company v. Adams in 1900, the U.S. Supreme Court ruled on a dispute involving taxation of railroad property by state authorities. The Yazoo and Mississippi Valley Railroad Company contested that its properties were being unfairly taxed at higher rates than other types of real estate within the state, violating their rights under both federal law and the Fourteenth Amendment's Equal Protection Clause. However, upon review, it was found that there was no evidence to suggest an intentional or systematic discrimination against railroads by tax assessors in comparison with other classes of property owners within Mississippi State. Therefore, any differences in valuation could be attributed to errors or discrepancies inherent in any system attempting to achieve uniformity across diverse forms of property rather than deliberate bias against railroad companies specifically. The court thus upheld the validity of these taxes as they did not infringe upon constitutional protections for equal treatment under law nor violate federal statutes regulating interstate commerce.

In the dissenting opinion for Yazoo and Mississippi Valley Railroad Company v. Adams, the justice argued that the majority's decision was inconsistent with previous rulings of the court regarding tax laws. The justice contended that a state has no right to impose taxes on interstate commerce or any other federal matter, as this would infringe upon federal jurisdiction and violate constitutional principles of separation of powers. He also disagreed with the majority's interpretation of "commerce," arguing it should be understood in its broader sense to include all business operations rather than just transportation activities. Furthermore, he believed that by allowing states to levy taxes on railroad companies based on their total property value (including out-of-state properties), they were essentially taxing interstate commerce indirectly which is unconstitutional according to earlier precedents set by this court.