[Sidenote: Disastrous effects ascribed to sexual crime in Assam, Bengal, and Annam.] Some of the tribes of Assam similarly trace a connexion between the crops and the behaviour of the human sexes; for they believe that so long as the crops remain ungarnered, the slightest incontinence would ruin all.[45.2] Again, the inhabitants of the hills near Rajamahal in Bengal imagine that adultery, undetected and unexpiated, causes the inhabitants of the village to be visited by a plague or destroyed by tigers or other ravenous beasts. To prevent these evils an adulteress generally makes a clean breast. Her paramour has then to furnish a hog, and he and she are sprinkled with its blood, which is supposed to wash away their sin and avert the divine wrath. When a village suffers from plague or the ravages of wild beasts, the people religiously believe that the calamity is a punishment for secret immorality, and they resort to a curious form of divination to discover the culprits, in order that the crime may be duly expiated.[45.3] The Khasis of Assam are divided into a number of clans which are exogamous, that is to say, no man may marry a woman of his own clan. Should a man be found to cohabit with a woman of his own clan, it is treated as incest and is believed to cause great disasters; the people will be struck by lightning or killed by tigers, the women will die in child-bed, and {46} so forth. The guilty couple are taken by their clansmen to a priest and obliged to sacrifice a pig and a goat; after that they are made outcasts, for their offence is inexpiable.[46.1] The Orang Glai, a savage tribe in the mountains of Annam, similarly suppose that illicit love is punished by tigers, which devour the sinners. If a girl is found with child, her family offers a feast of pigs, fowls, and wine to appease the offended spirits.[46.2]