Which Yale professor first analyzed Rock Oil for its properties as an illuminant in a paper dated April 16, 1855?

Which Yale professor first analyzed Rock Oil for its properties as an illuminant in a paper dated April 16, 1855?

• A. Dr. Benjamin Silliman Jr.
• B. Dr. Benjamin Silliman Sr.
• C. Dr. James D. Smith
• D. Dr. Samuel W. Langley

Answer: (A)

This question hinges on who at Yale conducted early testing of petroleum as a lamp fuel. Benjamin Silliman Jr. was the Yale chemistry professor who, in an April 16, 1855 paper, analyzed rock oil (petroleum) for its illuminant properties. He studied its composition, distillation products, and burning behavior, showing that petroleum could function as a lighting fuel and helping to establish its potential as a practical illuminant. His work builds on his father’s earlier petroleum research, but the 1855 paper attributing this analysis to rock oil’s use as a lamp fuel is credited to his son. The other names are not associated with this specific Yale study from that date.

This question hinges on who at Yale conducted early testing of petroleum as a lamp fuel. Benjamin Silliman Jr. was the Yale chemistry professor who, in an April 16, 1855 paper, analyzed rock oil (petroleum) for its illuminant properties. He studied its composition, distillation products, and burning behavior, showing that petroleum could function as a lighting fuel and helping to establish its potential as a practical illuminant. His work builds on his father’s earlier petroleum research, but the 1855 paper attributing this analysis to rock oil’s use as a lamp fuel is credited to his son. The other names are not associated with this specific Yale study from that date.