Columbia subject headings:
Kelvin, William Thomson, Baron, 1824-1907--Congresses.
Mathematics--England--Cambridge--History--Congresses.
Maxwell, James Clerk, 1831-1879--Congresses.
Physics--England--Cambridge--History--Congresses.
Physics--Study and teaching (Higher)--England--Cambridge--History--Congresses.
Harvard subject headings:
Kelvin, William Thomson, Baron, 1824-1907--Congresses.
Mathematics--England--Cambridge--History--Congresses.
Maxwell, James Clerk, 1831-1879--Congresses.
Physics--England--Cambridge--History--Congresses.
Physics--Study and teaching (Higher)--England--Cambridge--History--Congresses.
Princeton subject headings:
Kelvin, William Thomson, Baron, 1824-1907--Congresses.
Mathematics--England--Cambridge--History--Congresses.
Maxwell, James Clerk, 1831-1879--Congresses.
Physics--England--Cambridge--History--Congresses.
Physics--Study and teaching (Higher)--England--Cambridge--History--Congresses.