Answers

2015-04-09T19:28:12+05:30
Mrs packletide is the speaker
the incidental costs she is referring to is the money she paid to mebbin to be secretive about the real reason of tigers death , money to villagers to shoot , villa she had to buy for mebbin.
hence she says that since the incidental costs are v.heavy she doesnt resort to killing anymore.
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2015-04-09T19:42:59+05:30
Speaker is Mrs.Packletide  she is referring to Mrs.Mebbin 
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