the great Gol Gumbaz at Bijapur.
In the Victoria Memorial at Calcutta
Calcutta G.P.O. (General Post Office)
Government
Granary at Bankipore in Patna District
Sekundar’s tomb at Fatehpur Sikri near Agra,
The gallery at the Calcutta General Post Office is architecturally very similar to
that at St. Paul’s in London, though smaller in size, with the important difference
that its walls are perfectly vertical while those of the St, Paul’s gallery slope
distinctly inwards as has been pointed out by Prof. Sabine in his article. The fact
that the effects observed in the latter are clearly more striking appears to support
Prof. Sabine’s contention that the inward slope of the wall is an important feature
contributing to the efficiency of the whispering gallery.
