TX. 
‘On an Indian method of constructing Arches. 
By Caprain MACKINTOSH. 
To the Secretary of the Asiatick Society. 
Nagpore, 20th No vember, 1820. 
‘Sim, 
Eavine lately witnessed at Nagpore, thie construction of 
a semicircular arch, which was erected by native workmen 
without any centering, or other usual temporary support, in 
a way I believe peculiar to this part of India, I venture to 
communicate to you the principles upon which this work 
was conducted, in the hope, that even professional men in 
Europe, may thereby derive advantage ; it being generally un- 
derstood, that the centering for an arch, is attended with con- 
siderable expence. 
Tne arch was semicircular + 22 feet in span; the piers | 
were built in the usual manner and very substantially. 
