Heyl, Paul R., [339], [342]

Hirsch, Adolph, [322], [324]

Huygens, Christiaan, [304], [305], [307], [314], [342], [346]

Ibañez, Carlos, [325]

Jeffreys, Sir Harold, [342]

Jones, Thomas, [318]

Kater, Henry, [304], [314], [325], [327], [329], [345], [346]

Kühnen, F., [338], [339]

La Condamine, Charles Marie de, [307], [310], [311], [343]

Laplace, Marquis Pierre Simon de, [309], [313], [320]