Hauenstein Tunnel, the, its ventilation, [415];
cold, how excluded, [416].
Haupt, General, his tunnel boring machine, [385].
Hawkshaw, John, Esq., C.E., his tunnel under the Mersey, [393];
his borings between Calais and Dover, [398].
Haywood, William, Esq., engineer of the Corporation of London, [322].
Head, Sir Francis, Bart., quotations from his “Stokers and Pokers,” [196], [197], [198], [224].
Helvellyn, the highest mountain in England, note, [9].
Henry VI., founder of Eton College, note, [216].