I will only quote one or two instances which have come within my own observation.

The respective distances beyond which Panchamas must not approach a Brahman lest they "pollute" him differ according to their degree of uncleanness.

Though they have been laid down with great precision, it is growing more and more difficult to enforce them with the increasing promiscuity of railway and street-car intercourse, but in more remote parts of India, and especially in the south, the old rules are still often observed.

In Cochin a few years ago I was crossing a bridge, and just in front of me walked a respectable-looking native.

He suddenly turned tail, and running back to the end of the bridge from which we had both come, plunged out of sight into the jungle on the side of the road.